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If a % is the discount on the marked price y, the discount is

a) (y/a) ×100

b) (a/y) ×100

a) (y/100) ×a

a) (100/year)

X Bought a X box at Rs 35000 and sold it to Y. Y in turns sold it to Z. Both X and Y made 20% profit. Which one of the following is true?

a) X and Y earn the same profit

b) X earned more profit Y

c) X earned less profit then Y

d) Cannot be determined

(I) 50 % of 140 (ii) 30 % of $ 750 (iii) 16.5 % of 4000 kg

(iv) 2

(v) 0.8 % of 8 km (vi) 150 % of 1000

(vii) 12 % of 360 m (viii) 2

(ix) 0.8 % of 250 g

(x) 3/4 % of $ 780

True and False statement

a) C.P = M.P – Discount

b) Discount is the reduction given on Marked price of the article

c) If a discount x is available on the marked price y of the article, then discount % is (x/y) ×100

d) Simple interest is always less than compound interest for the same principle, same interest rate and same time period (>1)

e) Sales tax is computed over the Selling price of the article and added to the bill of the customer

The list price of an article is 100Rs.If you get a price discount of 15% and pay 5% for tax, what is the actual cost of your article?

In a Movie complex 75 % of seats were filled. If there were 600 seats in the hall, how many seats were vacant?

Question 7

A real estate agent earns Rs 50000 as commission on the sale of the property. If the commission is 4% of the selling price. What is the selling price of the?

A Woman earns Rs 100000 per month and spends 65 % of it. How much money does she save every month?

To clear his stock a Lifestyle offers a discount of 50 %. Find the discount on goods worth Rs1500?

The population of a city increased from 60000 to 62500. What is the increase percent?

An alloy of iron and zinc contains 40 % of iron and the rest is zinc. Find the weight of the zinc in 3 kg of the alloy?

Jatin got 10% increase in his salary. If his new salary is 55000, find his previous salary.

The enrollment in a Government school increased by 15 % from the year 2014 to 2015. If 1500 enrolled in 2014, how many enrolled in 2015.

For an amount x, explain why 20% increase followed by the 20% decrease is less than original amount x

By what number must the given number be multiplied to increase the number by 10%?

The price of oil rises from Rs120 per litre to Rs 150 per litre. Find the percentage rise in the price of oil?

The population of a small locality in Gurgaon was 1000 in 2014 and became 1500 in 2015. By what percent did the population increases?

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**Notes****Worksheets****Ncert Solutions**

Class 8 Maths Class 8 Science

Given below are the links of some of the reference books for class 8 Math.

- Mathematics Foundation Course for JEE/Olympiad : Class 8 This book can take students maths skills further. Only buy if child is interested in Olympiad/JEE foundation courses.
- Mathematics for Class 8 by R S Aggarwal Detailed Mathematics book to clear basics and concepts. I would say it is a must have book for class 8 student.
- Pearson Foundation Series (IIT -JEE / NEET) Physics, Chemistry, Maths & Biology for Class 8 (Main Books) | PCMB Combo : These set of books could help your child if he aims to get extra knowledge of science and maths. These would be helpful if child wants to prepare for competitive exams like JEE/NEET. Only buy if you can provide help to the child while studying.
- Reasoning Olympiad Workbook - Class 8 :- Reasoning helps sharpen the mind of child. I would recommend students practicing reasoning even though they are not appearing for Olympiad.

You can use above books for extra knowledge and practicing different questions.

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