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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 571 · 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.A study lamp marked at ₹4100 is sold for ₹2460. What is the discount percent?
  2. 2.A price comes down by 15% and then comes down by 50% more. By what percent has it come down in all? =
  3. 3.Marks of 6 friends in a quiz: 73, 69, 72, 86, 77, 97. What is their average mark?
  4. 4.Find the amount when ₹36400 is invested at 5% per year compound interest for 2 years (in ₹).
  5. 5.A cricket bat is marked at ₹360. The shop gives a 10% discount. How much do you pay (in ₹)?
  6. 6.Find the simple interest on ₹14700 at 11% per year for 5 years (in ₹).
  7. 7.By selling a study lamp for ₹420, a shopkeeper makes a profit of 50%. What did the study lamp cost the shopkeeper (in ₹)?
  8. 8.Marks of 6 friends in a quiz: 68, 81, 59, 78, 72, 44. What is their average mark?
  9. 9.A pressure cooker marked at ₹1840 is sold for ₹1472. What is the discount percent?
  10. 10.The simple interest on ₹15000 for 3 years is ₹6300. What is the rate of interest (% per year)?
  11. 11.Find the amount when ₹48100 is invested at 10% per year compound interest for 2 years (in ₹).
  12. 12.Tara’s father is twice as old as Tara. The sum of their ages is 27 years. How old is the father?
  13. 13.A shopkeeper buys a pressure cooker for ₹1440 and sells it for ₹864. Find the loss percent.
  14. 14.A shopkeeper buys a pressure cooker for ₹1520 and sells it for ₹2128. Find the profit percent.
  15. 15.A watch bought for ₹1520 is sold at a profit of 20%. What is the selling price (in ₹)?
  16. 16.A watch is marked at ₹1320. The shop gives a 30% discount. How much do you pay (in ₹)?
  17. 17.Diya’s father is five times as old as Diya. The sum of their ages is 84 years. How old is Diya?
  18. 18.How many minutes does a car take to go 141 km at 47 km/h?
  19. 19.Find the compound interest on ₹48000 at 5% per year for 3 years, added every year (in ₹).
  20. 20.A school bag is marked at ₹1340. The shop gives a 50% discount. How much do you pay (in ₹)?
  21. 21.9 years ago, Dev’s mother was twice as old as Dev. The mother is 31 years old now. How old is Dev now?
  22. 22.The simple interest on ₹4100 for 2 years is ₹1148. What is the rate of interest (% per year)?
  23. 23.A shop sells 2700 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
  24. 24.Kabir cycles to his school at 45 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
  25. 25.Pooja and Priya together finish a job in 3 days. Pooja alone takes 6 days. How many days would Priya take alone?
  26. 26.Change 20 m/s into km/h.
  27. 27.Diya puts ₹9900 in a bank at 3% simple interest per year. How much will she have after 1 year (in ₹)?
  28. 28.Find the simple interest on ₹2600 at 15% per year for 1 year (in ₹).
  29. 29.What is the difference between the compound interest and the simple interest on ₹12400 at 25% per year for 2 years (in ₹)?
  30. 30.A shopkeeper buys a table fan for ₹460 and sells it for ₹529. Find the profit percent.
  31. 31.A shopkeeper buys a study lamp for ₹120 and sells it for ₹90. Find the loss percent.
  32. 32.Ishaan can finish a job in 16 days and Saanvi in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  33. 33.A shopkeeper buys a school bag for ₹1040 and sells it for ₹1560. Find the profit percent.
  34. 34.In 22 years, Saanvi will be twice as old as Saanvi was 5 years ago. How old is Saanvi now?
  35. 35.Change 25 m/s into km/h.
  36. 36.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
  37. 37.Diya puts ₹19700 in a bank at 9% simple interest per year. How much will she have after 3 years (in ₹)?
  38. 38.The price of a school bag changes from ₹860 to ₹946. By what percent did it go up?
  39. 39.Find the compound interest on ₹42500 at 4% per year for 2 years, added every year (in ₹).
  40. 40.What sum of money earns ₹1722 simple interest in 2 years at 7% per year (in ₹)?

Answer key

  1. 40
  2. 57.5
  3. 79
  4. 40131
  5. 324
  6. 8085
  7. 280
  8. 67
  9. 20
  10. 14
  11. 58201
  12. 18
  13. 40
  14. 40
  15. 1824
  16. 924
  17. 14
  18. 180
  19. 7566
  20. 670
  21. 20
  22. 14
  23. 3510
  24. 60
  25. 6
  26. 72
  27. 10197
  28. 390
  29. 775
  30. 15
  31. 25
  32. 240/31
  33. 50
  34. 32
  35. 90
  36. 75
  37. 25019
  38. 10
  39. 3468
  40. 12300

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