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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 615 · 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.Find the amount when ₹800 is invested at 15% per year compound interest for 2 years (in ₹).
  2. 2.A pressure cooker bought for ₹640 is sold at a loss of 50%. What is the selling price (in ₹)?
  3. 3.Dev can finish a job in 18 days and Aarav in 2 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  4. 4.Ishaan can finish a job in 10 days and Diya in 4 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  5. 5.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
  6. 6.The simple interest on ₹4400 for 3 years is ₹924. What is the rate of interest (% per year)?
  7. 7.By selling a pressure cooker for ₹874, a shopkeeper makes a loss of 5%. What did the pressure cooker cost the shopkeeper (in ₹)?
  8. 8.Find the compound interest on ₹48000 at 5% per year for 3 years, added every year (in ₹).
  9. 9.A price comes down by 20% and then comes down by 40% more. By what percent has it come down in all? =
  10. 10.By selling a watch for ₹1482, a shopkeeper makes a loss of 5%. What did the watch cost the shopkeeper (in ₹)?
  11. 11.A bicycle is marked at ₹1760. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
  12. 12.What is the difference between the compound interest and the simple interest on ₹28900 at 10% per year for 2 years (in ₹)?
  13. 13.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
  14. 14.A shop sells an average of 27 kg of sugar a day for 4 days, and then 34 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
  15. 15.A water tank holds 2440 litres. 25% of the water is used. How many litres are left?
  16. 16.10 years ago, Ishaan’s mother was twice as old as Ishaan. The mother is 24 years old now. How old is Ishaan now?
  17. 17.A price comes down by 20% and then comes down by 10% more. By what percent has it come down in all? =
  18. 18.The simple interest on ₹3400 for 1 year is ₹408. What is the rate of interest (% per year)?
  19. 19.Change 10 m/s into km/h.
  20. 20.Find the simple interest on ₹9900 at 11% per year for 5 years (in ₹).
  21. 21.By selling a cricket bat for ₹770, a shopkeeper makes a loss of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
  22. 22.Priya can finish a job in 8 days and Aarav in 16 days. What fraction of the job do they finish if they work together for 3 days? =
  23. 23.The average weight of 8 children is 38 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
  24. 24.Nisha can finish a job in 14 days and Kavya in 19 days. What fraction of the job do they finish if they work together for 3 days? =
  25. 25.A town has 2700 people. Its population grows by 15%. How many people live there now?
  26. 26.The simple interest on ₹16800 for 3 years is ₹7056. What is the rate of interest (% per year)?
  27. 27.What is the difference between the compound interest and the simple interest on ₹30000 at 25% per year for 2 years (in ₹)?
  28. 28.The price of a school bag changes from ₹360 to ₹468. By what percent did it go up?
  29. 29.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
  30. 30.A water tank holds 3320 litres. 15% of the water is used. How many litres are left?
  31. 31.Find the amount when ₹2896 is invested at 25% per year compound interest for 2 years (in ₹).
  32. 32.What is the difference between the compound interest and the simple interest on ₹17600 at 5% per year for 2 years (in ₹)?
  33. 33.What is the difference between the compound interest and the simple interest on ₹32500 at 8% per year for 2 years (in ₹)?
  34. 34.Marks of 4 friends in a quiz: 15, 36, 28, 9. What is their average mark?
  35. 35.Find the compound interest on ₹15625 at 8% per year for 3 years, added every year (in ₹).
  36. 36.Aarav’s father is twice as old as Aarav. The sum of their ages is 45 years. How old is the father?
  37. 37.In 27 years, Aditya will be twice as old as Aditya was 2 years ago. How old is Aditya now?
  38. 38.How many minutes does a car take to go 112 km at 35 km/h?
  39. 39.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
  40. 40.Marks of 5 friends in a quiz: 76, 74, 78, 76, 66. What is their average mark?

Answer key

  1. 1058
  2. 320
  3. 9/5
  4. 20/7
  5. 64
  6. 7
  7. 920
  8. 7566
  9. 52
  10. 1560
  11. 1188
  12. 289
  13. 19
  14. 30
  15. 1830
  16. 17
  17. 28
  18. 12
  19. 36
  20. 5445
  21. 1540
  22. 9/16
  23. 37
  24. 99/266
  25. 3105
  26. 14
  27. 1875
  28. 30
  29. 1951
  30. 2822
  31. 4525
  32. 44
  33. 208
  34. 22
  35. 4058
  36. 30
  37. 31
  38. 192
  39. 33.5
  40. 74

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