{"id":3920,"date":"2025-12-31T10:38:52","date_gmt":"2025-12-31T10:38:52","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-7-math\/expressions-using-letter-numbers-class-7-mcq\/"},"modified":"2025-12-31T10:38:52","modified_gmt":"2025-12-31T10:38:52","slug":"expressions-using-letter-numbers-class-7-mcq","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-7-math\/expressions-using-letter-numbers-class-7-mcq\/","title":{"rendered":"EXPRESSIONS USING LETTER NUMBERS class 7 MCQ"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam497\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-497\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the <span style=\"color: #ff0000;\"><strong>'Submit'<\/strong><\/span> button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-497\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8406'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>algebraic expressions for One-half of the sum of numbers a and b is<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8406' class='watupro-question-id'\/><input type='hidden' id='answerType8406' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8406'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8406[]' id='answer-id-33574' class='answer   answerof-8406  ' value='33574'   \/><label for='answer-id-33574' id='answer-label-33574' class=' answer'><span>$\\frac {1}{2}(a + b)$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8406[]' id='answer-id-33575' class='answer   answerof-8406  ' value='33575'   \/><label for='answer-id-33575' id='answer-label-33575' class=' answer'><span>$\\frac {1}{2}(a b)$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8406[]' id='answer-id-33576' class='answer   answerof-8406  ' value='33576'   \/><label for='answer-id-33576' id='answer-label-33576' class=' answer'><span>$\\frac {1}{2}(a - b)$<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8406[]' id='answer-id-33577' class='answer   answerof-8406  ' value='33577'   \/><label for='answer-id-33577' id='answer-label-33577' class=' answer'><span>$\\frac {1}{2}a + b$<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8407'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>(40x + 75y) \u2013 (6x + 10y) simplified to<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8407' class='watupro-question-id'\/><input type='hidden' id='answerType8407' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8407'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8407[]' id='answer-id-33578' class='answer   answerof-8407  ' value='33578'   \/><label for='answer-id-33578' id='answer-label-33578' class=' answer'><span>34x + 66y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8407[]' id='answer-id-33579' class='answer   answerof-8407  ' value='33579'   \/><label for='answer-id-33579' id='answer-label-33579' class=' answer'><span>33x + 65y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8407[]' id='answer-id-33580' class='answer   answerof-8407  ' value='33580'   \/><label for='answer-id-33580' id='answer-label-33580' class=' answer'><span>34x - 65y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8407[]' id='answer-id-33581' class='answer   answerof-8407  ' value='33581'   \/><label for='answer-id-33581' id='answer-label-33581' class=' answer'><span>34x + 65y<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8408'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>A wire is (7x \u2013 3) metres long. A length of (3x \u2013 4) metres is cut for use. How much wire is left?<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8408' class='watupro-question-id'\/><input type='hidden' id='answerType8408' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8408'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8408[]' id='answer-id-33582' class='answer   answerof-8408  ' value='33582'   \/><label for='answer-id-33582' id='answer-label-33582' class=' answer'><span>4x -1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8408[]' id='answer-id-33583' class='answer   answerof-8408  ' value='33583'   \/><label for='answer-id-33583' id='answer-label-33583' class=' answer'><span>4x + 1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8408[]' id='answer-id-33584' class='answer   answerof-8408  ' value='33584'   \/><label for='answer-id-33584' id='answer-label-33584' class=' answer'><span>4x -2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8408[]' id='answer-id-33585' class='answer   answerof-8408  ' value='33585'   \/><label for='answer-id-33585' id='answer-label-33585' class=' answer'><span>4x +2<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8409'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>Subtract the expressions<br \/>\r\n<br \/>\r\n9x + 7 + 3z\u00a0 from 10x -7 -6z<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8409' class='watupro-question-id'\/><input type='hidden' id='answerType8409' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8409'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8409[]' id='answer-id-33586' class='answer   answerof-8409  ' value='33586'   \/><label for='answer-id-33586' id='answer-label-33586' class=' answer'><span>x -9z - 14<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8409[]' id='answer-id-33587' class='answer   answerof-8409  ' value='33587'   \/><label for='answer-id-33587' id='answer-label-33587' class=' answer'><span>19x -9z - 14<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8409[]' id='answer-id-33588' class='answer   answerof-8409  ' value='33588'   \/><label for='answer-id-33588' id='answer-label-33588' class=' answer'><span>x -9z - 7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8409[]' id='answer-id-33589' class='answer   answerof-8409  ' value='33589'   \/><label for='answer-id-33589' id='answer-label-33589' class=' answer'><span>x -3z - 14<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8410'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>Add the expressions<br \/>\r\n<br \/>\r\n10x + 3y - 14 and 15 - 6y - 2x<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8410' class='watupro-question-id'\/><input type='hidden' id='answerType8410' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8410'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8410[]' id='answer-id-33590' class='answer   answerof-8410  ' value='33590'   \/><label for='answer-id-33590' id='answer-label-33590' class=' answer'><span>8x - 6y + 1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8410[]' id='answer-id-33591' class='answer   answerof-8410  ' value='33591'   \/><label for='answer-id-33591' id='answer-label-33591' class=' answer'><span>12x - 3y + 1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8410[]' id='answer-id-33592' class='answer   answerof-8410  ' value='33592'   \/><label for='answer-id-33592' id='answer-label-33592' class=' answer'><span>8x - 3y - 1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8410[]' id='answer-id-33593' class='answer   answerof-8410  ' value='33593'   \/><label for='answer-id-33593' id='answer-label-33593' class=' answer'><span>8x - 3y + 1<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8411'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>Simplfy the expression<br \/>\r\n<br \/>\r\n(8x + 9z -1) - 6x - 3z + 10<\/div><input type='hidden' name='question_id[]' id='qID_6' value='8411' class='watupro-question-id'\/><input type='hidden' id='answerType8411' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8411'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8411[]' id='answer-id-33594' class='answer   answerof-8411  ' value='33594'   \/><label for='answer-id-33594' id='answer-label-33594' class=' answer'><span>2x + 6z -9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8411[]' id='answer-id-33595' class='answer   answerof-8411  ' value='33595'   \/><label for='answer-id-33595' id='answer-label-33595' class=' answer'><span>2x + 6z + 9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8411[]' id='answer-id-33596' class='answer   answerof-8411  ' value='33596'   \/><label for='answer-id-33596' id='answer-label-33596' class=' answer'><span>2x + 9z + 9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8411[]' id='answer-id-33597' class='answer   answerof-8411  ' value='33597'   \/><label for='answer-id-33597' id='answer-label-33597' class=' answer'><span>14x + 6z + 9<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8412'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>if the price of notebook and pencil are 60 and 5 Rs respectivity, then price of x notebook and y pencil will be<\/div><input type='hidden' name='question_id[]' id='qID_7' value='8412' class='watupro-question-id'\/><input type='hidden' id='answerType8412' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8412'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8412[]' id='answer-id-33598' class='answer   answerof-8412  ' value='33598'   \/><label for='answer-id-33598' id='answer-label-33598' class=' answer'><span>60 + 5 +x +  y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8412[]' id='answer-id-33599' class='answer   answerof-8412  ' value='33599'   \/><label for='answer-id-33599' id='answer-label-33599' class=' answer'><span>60x + 5 y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8412[]' id='answer-id-33600' class='answer   answerof-8412  ' value='33600'   \/><label for='answer-id-33600' id='answer-label-33600' class=' answer'><span>5x + 60y<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8412[]' id='answer-id-33601' class='answer   answerof-8412  ' value='33601'   \/><label for='answer-id-33601' id='answer-label-33601' class=' answer'><span>60x + y + 5<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8413'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>A snail is trying to climb along the wall of a deep well. During the day it climbs up \u2018u\u2019 cm and during the night it slowly slips down \u2018d\u2019 cm. This happens for 10 days and 10 nights.Write an expression describing how far away the snail is from its starting position<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8413' class='watupro-question-id'\/><input type='hidden' id='answerType8413' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8413'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8413[]' id='answer-id-33602' class='answer   answerof-8413  ' value='33602'   \/><label for='answer-id-33602' id='answer-label-33602' class=' answer'><span>10 u - 10 d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8413[]' id='answer-id-33603' class='answer   answerof-8413  ' value='33603'   \/><label for='answer-id-33603' id='answer-label-33603' class=' answer'><span>10d - 10 u<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8413[]' id='answer-id-33604' class='answer   answerof-8413  ' value='33604'   \/><label for='answer-id-33604' id='answer-label-33604' class=' answer'><span>10 + 10 + u -d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8413[]' id='answer-id-33605' class='answer   answerof-8413  ' value='33605'   \/><label for='answer-id-33605' id='answer-label-33605' class=' answer'><span>none of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8414'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>add the expression<br \/>\r\n<br \/>\r\n- 6f + 19 - 8s and -23 + 13f + 12s<\/div><input type='hidden' name='question_id[]' id='qID_9' value='8414' class='watupro-question-id'\/><input type='hidden' id='answerType8414' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8414'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8414[]' id='answer-id-33606' class='answer   answerof-8414  ' value='33606'   \/><label for='answer-id-33606' id='answer-label-33606' class=' answer'><span>7f + 4s -4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8414[]' id='answer-id-33607' class='answer   answerof-8414  ' value='33607'   \/><label for='answer-id-33607' id='answer-label-33607' class=' answer'><span>7f + 4s +4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8414[]' id='answer-id-33608' class='answer   answerof-8414  ' value='33608'   \/><label for='answer-id-33608' id='answer-label-33608' class=' answer'><span>19f + 4s -4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8414[]' id='answer-id-33609' class='answer   answerof-8414  ' value='33609'   \/><label for='answer-id-33609' id='answer-label-33609' class=' answer'><span>7f + 16s -4<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8415'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>Simplify the expression<br \/>\r\n<br \/>\r\n(10n + 4m + 16) - (4m - 4n) + 45 + (2m - 2n)<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8415' class='watupro-question-id'\/><input type='hidden' id='answerType8415' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8415'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8415[]' id='answer-id-33610' class='answer   answerof-8415  ' value='33610'   \/><label for='answer-id-33610' id='answer-label-33610' class=' answer'><span>12n + 2m + 61<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8415[]' id='answer-id-33611' class='answer   answerof-8415  ' value='33611'   \/><label for='answer-id-33611' id='answer-label-33611' class=' answer'><span>12n + 8m + 61<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8415[]' id='answer-id-33612' class='answer   answerof-8415  ' value='33612'   \/><label for='answer-id-33612' id='answer-label-33612' class=' answer'><span>14n + 2m + 61<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8415[]' id='answer-id-33613' class='answer   answerof-8415  ' value='33613'   \/><label 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