Comparing Quantities Class 8 Extra Questions Maths Chapter 8
Q1. Express the following in decimal form:
Q2. Evaluate the following:
(a) 20% of 400
(b) 12.5% of 625
Q3. If 20% of x is 25, then find x.
Q4. Express the following as a fraction
Q5. Express the following into percent
Q6. There are 24% of boys in a school. If the number of girls is 456, find the total number of students in the school.
Q7. The cost of 15 articles is equal to the selling price of 12 articles. Find the profit percent.
Q8. An article is marked at ₹ 940. If it is sold for ₹ 799, then find the discount percent.
Q9. A watch was bought for ₹ 2,700 including 8% VAT. Find its price before the VAT was added.
Ans: Rs 2500
Q10. Find the amount if ₹ 2,000 is invested for 2 years at 4% p.a. compounded annually.
Ans: Rs. 2163.20
Q11. A number is increased by 20% and then it is decreased by 20%. Find the net increase or decrease percent.
Q12. Two candidates Raman and Rajan contested an election. Raman gets 46% of the valid votes and is defeated by 1600 votes. Find the total number of valid votes cast in the election.
Q13. A man whose income is ₹ 57,600 a year spends ₹ 43,200 a year. What percentage of his income does he save?
Q14. Find the amount of ₹ 6,250 at 8% pa compounded annually for 2 years. Also, find the compound interest.
Q15. Vishakha offers a discount of 20% on all the items at her shop and still makes a profit of 12%. What is the cost price of an article marked at ₹ 280?
Q16. Find the compound interest on ₹ 48,000 for one year at 8% per annum when compounded half-yearly. (NCERT Exemplar)