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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 361 · 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.Two discounts of 20% and 50%, one after the other, are the same as one discount of what percent? =
  2. 2.A water tank holds 1460 litres. 15% of the water is used. How many litres are left?
  3. 3.Find the compound interest on ₹8000 at 15% per year for 3 years, added every year (in ₹).
  4. 4.Kabir cycles to his school at 30 km/h and comes back by the same road at 70 km/h. What is his average speed for the whole trip (in km/h)?
  5. 5.In how many years will ₹2200 earn ₹1144 as simple interest at 13% per year?
  6. 6.Arjun’s father is four times as old as Arjun. The sum of their ages is 55 years. How old is Arjun?
  7. 7.Karan’s father is twice as old as Karan. The sum of their ages is 27 years. How old is the father?
  8. 8.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?
  9. 9.The average weight of 5 children is 36 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
  10. 10.What sum of money earns ₹3216 simple interest in 3 years at 8% per year (in ₹)?
  11. 11.Find the amount when ₹31250 is invested at 12% per year compound interest for 3 years (in ₹).
  12. 12.Saanvi works twice as fast as Aarav. Together they finish a job in 8 days. How many days would Aarav take alone?
  13. 13.Tara can finish a job in 4 days and Ananya in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  14. 14.A shopkeeper buys a school bag for ₹400 and sells it for ₹380. Find the loss percent.
  15. 15.Marks of 5 friends in a quiz: 73, 56, 57, 66, 83. What is their average mark?
  16. 16.Change 30 m/s into km/h.
  17. 17.A pair of shoes marked at ₹3220 is sold for ₹2737. What is the discount percent?
  18. 18.A bicycle is marked at ₹550. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
  19. 19.How many minutes does a car take to go 62 km at 40 km/h?
  20. 20.Manav’s father is four times as old as Manav. The sum of their ages is 40 years. How old is Manav?
  21. 21.Find the simple interest on ₹8600 at 2% per year for 4 years (in ₹).
  22. 22.The price of a school bag changes from ₹660 to ₹396. By what percent did it come down?
  23. 23.The average of 4 numbers is 23. When one more number is added, the average becomes 26. What number was added?
  24. 24.A cricket bat bought for ₹1000 is sold at a profit of 10%. What is the selling price (in ₹)?
  25. 25.In 24 years, Farhan will be twice as old as Farhan was 2 years ago. How old is Farhan now?
  26. 26.In how many years will ₹2800 earn ₹420 as simple interest at 3% per year?
  27. 27.Find the compound interest on ₹32000 at 15% per year for 3 years, added every year (in ₹).
  28. 28.Vivaan works three times as fast as Diya. Together they finish a job in 4 days. How many days would Diya take alone?
  29. 29.Find the compound interest on ₹37500 at 4% per year for 2 years, added every year (in ₹).
  30. 30.Marks of 5 friends in a quiz: 41, 26, 43, 29, 31. What is their average mark?
  31. 31.Find the compound interest on ₹46875 at 8% per year for 3 years, added every year (in ₹).
  32. 32.The price of a bicycle is ₹1140. It goes up by 5%. What is the new price (in ₹)?
  33. 33.Find the amount when ₹16000 is invested at 5% per year compound interest for 3 years (in ₹).
  34. 34.A watch marked at ₹4580 is sold for ₹2290. What is the discount percent?
  35. 35.A water tank holds 360 litres. 5% of the water is used. How many litres are left?
  36. 36.Two discounts of 10% and 25%, one after the other, are the same as one discount of what percent? =
  37. 37.Diya can finish a job in 16 days and Dev in 8 days. What fraction of the job do they finish if they work together for 3 days? =
  38. 38.Diya puts ₹17800 in a bank at 15% simple interest per year. How much will she have after 3 years (in ₹)?
  39. 39.Marks of 4 friends in a quiz: 89, 64, 74, 85. What is their average mark?
  40. 40.Manav can finish a job in 17 days and Arjun in 6 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =

Answer key

  1. 60
  2. 1241
  3. 4167
  4. 42
  5. 4
  6. 11
  7. 18
  8. 288
  9. 35
  10. 13400
  11. 43904
  12. 24
  13. 12/7
  14. 5
  15. 67
  16. 108
  17. 15
  18. 330
  19. 93
  20. 8
  21. 688
  22. 40
  23. 38
  24. 1100
  25. 28
  26. 5
  27. 16668
  28. 16
  29. 3060
  30. 34
  31. 12174
  32. 1197
  33. 18522
  34. 50
  35. 342
  36. 32.5
  37. 9/16
  38. 25810
  39. 78
  40. 102/23

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