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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 212 · 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 3200 litres. 5% of the water is used. How many litres are left?
  2. 2.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
  3. 3.Diya is 2 years older than Priya. In 4 years, the sum of their ages will be 58. How old is Priya now?
  4. 4.A school bag marked at ₹2320 is sold for ₹1392. What is the discount percent?
  5. 5.The price of a school bag changes from ₹4480 to ₹4928. By what percent did it go up?
  6. 6.Kabir works three times as fast as Aditya. Together they finish a job in 4 days. How many days would Aditya take alone?
  7. 7.Find the compound interest on ₹31250 at 8% per year for 3 years, added every year (in ₹).
  8. 8.A water tank holds 3180 litres. 25% of the water is used. How many litres are left?
  9. 9.8 years ago, Arjun’s mother was four times as old as Arjun. The mother is 40 years old now. How old is Arjun now?
  10. 10.Change 72 km/h into metres per second.
  11. 11.By selling a school bag for ₹1500, a shopkeeper makes a profit of 50%. What did the school bag cost the shopkeeper (in ₹)?
  12. 12.The simple interest on ₹12200 for 2 years is ₹488. What is the rate of interest (% per year)?
  13. 13.In 23 years, Aditya will be twice as old as Aditya was 4 years ago. How old is Aditya now?
  14. 14.Find the amount when ₹49375 is invested at 12% per year compound interest for 2 years (in ₹).
  15. 15.Diya puts ₹5100 in a bank at 3% simple interest per year. How much will she have after 2 years (in ₹)?
  16. 16.The simple interest on ₹18800 for 4 years is ₹6768. What is the rate of interest (% per year)?
  17. 17.A price goes up by 5% and then goes up by 25% more. By what percent has it gone up in all? =
  18. 18.Diya puts ₹3600 in a bank at 13% simple interest per year. How much will she have after 1 year (in ₹)?
  19. 19.The price of a school bag changes from ₹4920 to ₹7380. By what percent did it go up?
  20. 20.A price goes up by 10% and then comes down by 5%. By what percent has it gone up in all? =
  21. 21.Rohan is 3 years older than Arjun. In 9 years, the sum of their ages will be 67. How old is Arjun now?
  22. 22.Diya puts ₹7500 in a bank at 13% simple interest per year. How much will she have after 2 years (in ₹)?
  23. 23.The simple interest on ₹9600 for 1 year is ₹864. What is the rate of interest (% per year)?
  24. 24.The simple interest on ₹5500 for 1 year is ₹165. What is the rate of interest (% per year)?
  25. 25.Rohan can finish a job in 9 days and Meera in 8 days. What fraction of the job do they finish if they work together for 1 day? =
  26. 26.Diya puts ₹4800 in a bank at 4% simple interest per year. How much will she have after 3 years (in ₹)?
  27. 27.After a 15% discount, a bicycle costs ₹561. What was its marked price (in ₹)?
  28. 28.Isha works twice as fast as Manav. Together they finish a job in 10 days. How many days would Manav take alone?
  29. 29.Vivaan can finish a job in 3 days and Rahul in 20 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  30. 30.A shopkeeper buys a school bag for ₹820 and sells it for ₹697. Find the loss percent.
  31. 31.By selling a cricket bat for ₹1280, a shopkeeper makes a loss of 20%. What did the cricket bat cost the shopkeeper (in ₹)?
  32. 32.The price of a bicycle is ₹900. It goes up by 5%. What is the new price (in ₹)?
  33. 33.Change 35 m/s into km/h.
  34. 34.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
  35. 35.A bicycle marked at ₹4640 is sold for ₹3712. What is the discount percent?
  36. 36.Diya’s father is five times as old as Diya. The sum of their ages is 72 years. How old is the father?
  37. 37.A school bag is marked at ₹100. The shop gives a 40% discount. How much do you pay (in ₹)?
  38. 38.A price goes up by 15% and then goes up by 40% more. By what percent has it gone up in all? =
  39. 39.By selling a pressure cooker for ₹1944, a shopkeeper makes a profit of 20%. What did the pressure cooker cost the shopkeeper (in ₹)?
  40. 40.Change 30 m/s into km/h.

Answer key

  1. 3040
  2. 28
  3. 24
  4. 40
  5. 10
  6. 16
  7. 8116
  8. 2385
  9. 16
  10. 20
  11. 1000
  12. 2
  13. 31
  14. 61936
  15. 5406
  16. 9
  17. 31.25
  18. 4068
  19. 50
  20. 4.5
  21. 23
  22. 9450
  23. 9
  24. 3
  25. 17/72
  26. 5376
  27. 660
  28. 30
  29. 60/23
  30. 15
  31. 1600
  32. 945
  33. 126
  34. 16
  35. 20
  36. 60
  37. 60
  38. 61
  39. 1620
  40. 108

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