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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 663 · 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 water tank holds 500 litres. 40% of the water is used. How many litres are left?
  2. 2.A table fan is marked at ₹1980. The shop gives a 20% discount. How much do you pay (in ₹)?
  3. 3.Marks of 4 friends in a quiz: 30, 27, 14, 17. What is their average mark?
  4. 4.A water tank holds 2800 litres. 15% of the water is used. How many litres are left?
  5. 5.Diya puts ₹13400 in a bank at 12% simple interest per year. How much will she have after 5 years (in ₹)?
  6. 6.Diya puts ₹3100 in a bank at 11% simple interest per year. How much will she have after 2 years (in ₹)?
  7. 7.In how many years will ₹5700 earn ₹570 as simple interest at 5% per year?
  8. 8.Priya’s father is three times as old as Priya. The sum of their ages is 20 years. How old is the father?
  9. 9.In 5 years, Priya will be twice as old as Priya was 3 years ago. How old is Priya now?
  10. 10.By selling a pressure cooker for ₹78, a shopkeeper makes a profit of 30%. What did the pressure cooker cost the shopkeeper (in ₹)?
  11. 11.Marks of 4 friends in a quiz: 63, 68, 67, 46. What is their average mark?
  12. 12.The average of 8 numbers is 56. When one more number is added, the average becomes 61. What number was added?
  13. 13.The simple interest on ₹7500 for 3 years is ₹1125. What is the rate of interest (% per year)?
  14. 14.5 years ago, Diya’s mother was three times as old as Diya. The mother is 20 years old now. How old is Diya now?
  15. 15.The average of 5 numbers is 32. When one more number is added, the average becomes 33. What number was added?
  16. 16.Rahul is 6 years older than Isha. In 6 years, the sum of their ages will be 48. How old is Isha now?
  17. 17.Zoya’s father is five times as old as Zoya. The sum of their ages is 48 years. How old is the father?
  18. 18.After a 40% discount, a study lamp costs ₹2700. What was its marked price (in ₹)?
  19. 19.A shop sells an average of 32 kg of sugar a day for 4 days, and then 26 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
  20. 20.The price of a school bag changes from ₹3340 to ₹4175. By what percent did it go up?
  21. 21.Find the simple interest on ₹1200 at 11% per year for 5 years (in ₹).
  22. 22.After a 40% discount, a watch costs ₹600. What was its marked price (in ₹)?
  23. 23.A water tank holds 1420 litres. 50% of the water is used. How many litres are left?
  24. 24.A price comes down by 50% and then comes down by 5% more. By what percent has it come down in all? =
  25. 25.In how many years will ₹8900 earn ₹1246 as simple interest at 7% per year?
  26. 26.A pair of shoes is marked at ₹496. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
  27. 27.In 22 years, Vivaan will be twice as old as Vivaan was 3 years ago. How old is Vivaan now?
  28. 28.Saanvi and Rahul together finish a job in 5 days. Saanvi alone takes 6 days. How many days would Rahul take alone?
  29. 29.Change 30 m/s into km/h.
  30. 30.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
  31. 31.A pressure cooker bought for ₹100 is sold at a loss of 20%. What is the selling price (in ₹)?
  32. 32.A bicycle bought for ₹900 is sold at a loss of 10%. What is the selling price (in ₹)?
  33. 33.After a 5% discount, a table fan costs ₹3591. What was its marked price (in ₹)?
  34. 34.A car runs for 1 hour at 38 km/h and then for 1 hour at 80 km/h. What is its average speed for the whole journey (in km/h)?
  35. 35.The price of a school bag changes from ₹1560 to ₹1872. By what percent did it go up?
  36. 36.Meera and Ananya together finish a job in 2 days. Meera alone takes 4 days. How many days would Ananya take alone?
  37. 37.A price comes down by 15% and then comes down by 40% more. By what percent has it come down in all? =
  38. 38.By selling a school bag for ₹550, a shopkeeper makes a profit of 25%. What did the school bag cost the shopkeeper (in ₹)?
  39. 39.A shopkeeper buys a table fan for ₹60 and sells it for ₹72. Find the profit percent.
  40. 40.In how many years will ₹7800 earn ₹780 as simple interest at 10% per year?

Answer key

  1. 300
  2. 1584
  3. 22
  4. 2380
  5. 21440
  6. 3782
  7. 2
  8. 15
  9. 11
  10. 60
  11. 61
  12. 101
  13. 5
  14. 10
  15. 38
  16. 15
  17. 40
  18. 4500
  19. 30
  20. 25
  21. 660
  22. 1000
  23. 710
  24. 52.5
  25. 2
  26. 279
  27. 28
  28. 30
  29. 108
  30. 26.5
  31. 80
  32. 810
  33. 3780
  34. 59
  35. 20
  36. 4
  37. 49
  38. 440
  39. 20
  40. 1

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