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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 672 · 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.By selling a watch for ₹75, a shopkeeper makes a loss of 25%. What did the watch cost the shopkeeper (in ₹)?
  2. 2.The average weight of 12 children is 38 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
  3. 3.Change 18 km/h into metres per second.
  4. 4.A shop sells an average of 52 kg of sugar a day for 2 days, and then 31 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
  5. 5.Diya puts ₹3700 in a bank at 13% simple interest per year. How much will she have after 3 years (in ₹)?
  6. 6.Change 35 m/s into km/h.
  7. 7.A watch marked at ₹2360 is sold for ₹1770. What is the discount percent?
  8. 8.In 3 years, Vivaan will be twice as old as Vivaan was 4 years ago. How old is Vivaan now?
  9. 9.Change 25 m/s into km/h.
  10. 10.The simple interest on ₹15700 for 1 year is ₹1413. What is the rate of interest (% per year)?
  11. 11.A shopkeeper buys a bicycle for ₹820 and sells it for ₹492. Find the loss percent.
  12. 12.In 12 years, Zoya will be twice as old as Zoya was 2 years ago. How old is Zoya now?
  13. 13.Change 54 km/h into metres per second.
  14. 14.What sum of money earns ₹1080 simple interest in 4 years at 15% per year (in ₹)?
  15. 15.After a 40% discount, a bicycle costs ₹1416. What was its marked price (in ₹)?
  16. 16.A watch is marked at ₹1680. The shop gives a 50% discount. How much do you pay (in ₹)?
  17. 17.A water tank holds 1060 litres. 40% of the water is used. How many litres are left?
  18. 18.A study lamp bought for ₹1540 is sold at a loss of 20%. What is the selling price (in ₹)?
  19. 19.Tara and Meera together finish a job in 3 days. Tara alone takes 4 days. How many days would Meera take alone?
  20. 20.The price of a school bag changes from ₹3500 to ₹3150. By what percent did it come down?
  21. 21.A study lamp is marked at ₹180. The shop gives a 5% discount. How much do you pay (in ₹)?
  22. 22.Aarav can finish a job in 8 days and Rahul in 6 days. What fraction of the job do they finish if they work together for 1 day? =
  23. 23.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
  24. 24.The price of a school bag changes from ₹2580 to ₹2451. By what percent did it come down?
  25. 25.Marks of 4 friends in a quiz: 43, 30, 25, 14. What is their average mark?
  26. 26.How many minutes does a car take to go 96 km at 30 km/h?
  27. 27.2 years ago, Kabir’s mother was three times as old as Kabir. The mother is 26 years old now. How old is Kabir now?
  28. 28.Ananya’s father is five times as old as Ananya. The sum of their ages is 90 years. How old is the father?
  29. 29.The average weight of 8 children is 41 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
  30. 30.A school bag is marked at ₹850. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
  31. 31.Aarav can finish a job in 9 days and Saanvi in 12 days. What fraction of the job do they finish if they work together for 3 days? =
  32. 32.A water tank holds 400 litres. 5% of the water is used. How many litres are left?
  33. 33.Rahul is 10 years older than Ananya. In 5 years, the sum of their ages will be 32. How old is Ananya now?
  34. 34.A study lamp marked at ₹4340 is sold for ₹4123. What is the discount percent?
  35. 35.A bus runs at 78 km/h. How far does it go in 30 minutes (in km)?
  36. 36.The average of 9 numbers is 20. When one more number is added, the average becomes 26. What number was added?
  37. 37.By selling a watch for ₹2408, a shopkeeper makes a profit of 40%. What did the watch cost the shopkeeper (in ₹)?
  38. 38.A price comes down by 25% and then comes down by 20% more. By what percent has it come down in all? =
  39. 39.A table fan bought for ₹600 is sold at a loss of 15%. What is the selling price (in ₹)?
  40. 40.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =

Answer key

  1. 100
  2. 37
  3. 5
  4. 38
  5. 5143
  6. 126
  7. 25
  8. 11
  9. 90
  10. 9
  11. 40
  12. 16
  13. 15
  14. 1800
  15. 2360
  16. 840
  17. 636
  18. 1232
  19. 12
  20. 10
  21. 171
  22. 7/24
  23. 36
  24. 5
  25. 28
  26. 192
  27. 10
  28. 75
  29. 39
  30. 544
  31. 7/12
  32. 380
  33. 6
  34. 5
  35. 39
  36. 80
  37. 1720
  38. 40
  39. 510
  40. 28

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