Railways NTPC · Mathematics

Arithmetic: Profit, Interest and Percentages

18 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 18 questions

  1. What is the simple interest on Rs 5000 at 12% per annum for 4 years?
  2. A number increases from 250 to 275. What is the percentage increase?
  3. What is the simple interest on Rs 5000 at 10% per annum for 2 years?
  4. A trader buys an article for Rs 2000 and sells it at a profit of 25%. What is the selling price?
  5. Two partners invest in the ratio 2 : 5 for the same period and earn a profit of Rs 21000. What is the share of the first partner?
  6. A trader buys an article for Rs 400 and sells it at a profit of 30%. What is the selling price?
  7. What is the simple interest on Rs 10000 at 10% per annum for 5 years?
  8. A shopkeeper allows successive discounts of 20% and 30% on a marked price of Rs 2000. What is the net selling price?
  9. What is the compound interest on Rs 4000 at 10% per annum for 2 years, compounded annually?
  10. What is the compound interest on Rs 20000 at 5% per annum for 2 years, compounded annually?
  11. What is the difference between compound interest and simple interest on Rs 2000 for 2 years at 10% per annum?
  12. Two partners invest in the ratio 2 : 3 for the same period and earn a profit of Rs 7000. What is the share of the first partner?
  13. A trader buys an article for Rs 1200 and sells it at a profit of 12%. What is the selling price?
  14. What is the simple interest on Rs 2000 at 5% per annum for 4 years?
  15. What is the simple interest on Rs 4000 at 8% per annum for 3 years?
  16. Two partners invest in the ratio 2 : 5 for the same period and earn a profit of Rs 35000. What is the share of the first partner?
  17. A trader buys an article for Rs 2500 and sells it at a profit of 5%. What is the selling price?
  18. An article is sold for Rs 600 at a loss of 20%. What is its cost price?

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