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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 620 · 40 questions
TalentJR

The method (Find the 100%): Name the topic and write its formula. For percent questions, decide which value is the 100%. Check units (₹, km/h, days) and whether the answer is sensible.

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  1. 1.The price of a school bag changes from ₹960 to ₹1200. By what percent did it go up?
  2. 2.The average of 9 numbers is 30. When one more number is added, the average becomes 34. What number was added?
  3. 3.A pair of shoes is marked at ₹520. The shop gives a 25% discount. How much do you pay (in ₹)?
  4. 4.A shopkeeper buys a study lamp for ₹2000 and sells it for ₹1900. Find the loss percent.
  5. 5.The average of 5 numbers is 42. When one more number is added, the average becomes 44. What number was added?
  6. 6.Ishaan and Tara together finish a job in 10 days. Ishaan alone takes 15 days. How many days would Tara take alone?
  7. 7.Find the compound interest on ₹41400 at 10% per year for 2 years, added every year (in ₹).
  8. 8.What sum of money earns ₹2070 simple interest in 3 years at 6% per year (in ₹)?
  9. 9.Change 40 m/s into km/h.
  10. 10.A shop sells an average of 71 kg of sugar a day for 2 days, and then 41 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  11. 11.A shopkeeper buys a bicycle for ₹600 and sells it for ₹690. Find the profit percent.
  12. 12.Find the compound interest on ₹6250 at 4% per year for 2 years, added every year (in ₹).
  13. 13.A watch is marked at ₹4800. The shop gives a 40% discount. How much do you pay (in ₹)?
  14. 14.A shopkeeper buys a cricket bat for ₹520 and sells it for ₹468. Find the loss percent.
  15. 15.Find the amount when ₹32000 is invested at 5% per year compound interest for 3 years (in ₹).
  16. 16.Find the compound interest on ₹4100 at 10% per year for 2 years, added every year (in ₹).
  17. 17.Change 20 m/s into km/h.
  18. 18.What sum of money earns ₹770 simple interest in 5 years at 2% per year (in ₹)?
  19. 19.The average weight of 12 children is 29 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  20. 20.Find the simple interest on ₹9900 at 14% per year for 5 years (in ₹).
  21. 21.Marks of 6 friends in a quiz: 37, 49, 43, 53, 46, 60. What is their average mark?
  22. 22.Find the simple interest on ₹11500 at 4% per year for 3 years (in ₹).
  23. 23.In 19 years, Vivaan will be twice as old as Vivaan was 2 years ago. How old is Vivaan now?
  24. 24.A shopkeeper buys a bicycle for ₹1040 and sells it for ₹1144. Find the profit percent.
  25. 25.The average of 8 numbers is 51. When one more number is added, the average becomes 57. What number was added?
  26. 26.A price comes down by 15% and then comes down by 15% more. By what percent has it come down in all? =
  27. 27.In how many years will ₹11300 earn ₹4407 as simple interest at 13% per year?
  28. 28.A cricket bat bought for ₹1020 is sold at a loss of 30%. What is the selling price (in ₹)?
  29. 29.In how many years will ₹3300 earn ₹1320 as simple interest at 10% per year?
  30. 30.The average weight of 5 children is 27 kg. One child, who weighs 31 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.How many minutes does a car take to go 139 km at 60 km/h?
  32. 32.Find the compound interest on ₹43100 at 10% per year for 2 years, added every year (in ₹).
  33. 33.By selling a bicycle for ₹2324, a shopkeeper makes a profit of 40%. What did the bicycle cost the shopkeeper (in ₹)?
  34. 34.Marks of 5 friends in a quiz: 30, 41, 42, 41, 6. What is their average mark?
  35. 35.What sum of money earns ₹810 simple interest in 1 year at 10% per year (in ₹)?
  36. 36.Rohan’s batting average after 9 innings is 29 runs. How many runs must Rohan score in the next innings to raise the average to 31?
  37. 37.A bicycle bought for ₹640 is sold at a profit of 50%. What is the selling price (in ₹)?
  38. 38.By selling a bicycle for ₹1380, a shopkeeper makes a loss of 25%. What did the bicycle cost the shopkeeper (in ₹)?
  39. 39.A shop sells an average of 73 kg of sugar a day for 2 days, and then 77 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  40. 40.By selling a table fan for ₹153, a shopkeeper makes a loss of 15%. What did the table fan cost the shopkeeper (in ₹)?

Answer key

  1. 25
  2. 70
  3. 390
  4. 5
  5. 54
  6. 30
  7. 8694
  8. 11500
  9. 144
  10. 56
  11. 15
  12. 510
  13. 2880
  14. 10
  15. 37044
  16. 861
  17. 72
  18. 7700
  19. 26
  20. 6930
  21. 48
  22. 1380
  23. 23
  24. 10
  25. 105
  26. 27.75
  27. 3
  28. 714
  29. 4
  30. 26
  31. 139
  32. 9051
  33. 1660
  34. 32
  35. 8100
  36. 49
  37. 960
  38. 1840
  39. 75
  40. 180

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