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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 749 · 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.

NameDateTime takenScore ___ / 40
  1. 1.Find the amount when ₹21250 is invested at 8% per year compound interest for 2 years (in ₹).
  2. 2.A study lamp marked at ₹1940 is sold for ₹970. What is the discount percent?
  3. 3.A price goes up by 50% and then comes down by 5%. By what percent has it gone up in all? =
  4. 4.What is the difference between the compound interest and the simple interest on ₹35000 at 8% per year for 2 years (in ₹)?
  5. 5.Find the amount when ₹40000 is invested at 15% per year compound interest for 3 years (in ₹).
  6. 6.Find the amount when ₹41536 is invested at 25% per year compound interest for 3 years (in ₹).
  7. 7.Marks of 5 friends in a quiz: 50, 45, 71, 45, 84. What is their average mark?
  8. 8.The average of 9 numbers is 25. When one more number is added, the average becomes 26. What number was added?
  9. 9.A price comes down by 15% and then comes down by 20% more. By what percent has it come down in all? =
  10. 10.Kabir cycles to his school at 60 km/h and comes back by the same road at 12 km/h. What is his average speed for the whole trip (in km/h)?
  11. 11.A shop sells an average of 60 kg of sugar a day for 4 days, and then 48 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
  12. 12.How many minutes does a car take to go 65 km at 65 km/h?
  13. 13.A table fan is marked at ₹1040. The shop takes 50% off, and then a further 10% off the new price. How much do you pay (in ₹)?
  14. 14.In how many years will ₹16100 earn ₹9660 as simple interest at 15% per year?
  15. 15.A shopkeeper buys a study lamp for ₹940 and sells it for ₹470. Find the loss percent.
  16. 16.By selling a watch for ₹990, a shopkeeper makes a profit of 50%. What did the watch cost the shopkeeper (in ₹)?
  17. 17.Find the simple interest on ₹12100 at 9% per year for 2 years (in ₹).
  18. 18.What sum of money earns ₹4608 simple interest in 3 years at 12% per year (in ₹)?
  19. 19.In how many years will ₹13400 earn ₹1608 as simple interest at 12% per year?
  20. 20.2 years ago, Ishaan’s mother was three times as old as Ishaan. The mother is 17 years old now. How old is Ishaan now?
  21. 21.In 30 years, Kabir will be twice as old as Kabir was 3 years ago. How old is Kabir now?
  22. 22.A bus runs at 44 km/h. How far does it go in 45 minutes (in km)?
  23. 23.Change 35 m/s into km/h.
  24. 24.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
  25. 25.A shopkeeper buys a pressure cooker for ₹260 and sells it for ₹273. Find the profit percent.
  26. 26.By selling a study lamp for ₹1071, a shopkeeper makes a loss of 15%. What did the study lamp cost the shopkeeper (in ₹)?
  27. 27.Meera can finish a job in 7 days and Dev in 14 days. What fraction of the job do they finish if they work together for 3 days? =
  28. 28.A shop sells 260 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
  29. 29.Change 18 km/h into metres per second.
  30. 30.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
  31. 31.Aditya’s father is twice as old as Aditya. The sum of their ages is 27 years. How old is the father?
  32. 32.Kabir cycles to his school at 21 km/h and comes back by the same road at 28 km/h. What is his average speed for the whole trip (in km/h)?
  33. 33.In how many years will ₹4000 earn ₹1040 as simple interest at 13% per year?
  34. 34.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
  35. 35.By selling a watch for ₹1230, a shopkeeper makes a profit of 50%. What did the watch cost the shopkeeper (in ₹)?
  36. 36.Marks of 5 friends in a quiz: 58, 70, 62, 53, 62. What is their average mark?
  37. 37.Diya puts ₹7000 in a bank at 5% simple interest per year. How much will she have after 3 years (in ₹)?
  38. 38.A bicycle marked at ₹1120 is sold for ₹1064. What is the discount percent?
  39. 39.A bicycle bought for ₹1460 is sold at a loss of 50%. What is the selling price (in ₹)?
  40. 40.By selling a bicycle for ₹1204, a shopkeeper makes a loss of 30%. What did the bicycle cost the shopkeeper (in ₹)?

Answer key

  1. 24786
  2. 50
  3. 42.5
  4. 224
  5. 60835
  6. 81125
  7. 59
  8. 35
  9. 32
  10. 20
  11. 54
  12. 60
  13. 468
  14. 4
  15. 50
  16. 660
  17. 2178
  18. 12800
  19. 1
  20. 7
  21. 36
  22. 33
  23. 126
  24. 468
  25. 5
  26. 1260
  27. 9/14
  28. 390
  29. 5
  30. 47
  31. 18
  32. 24
  33. 2
  34. 1951
  35. 820
  36. 61
  37. 8050
  38. 5
  39. 730
  40. 1720

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