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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 691 · 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 school bag for ₹168, a shopkeeper makes a profit of 40%. What did the school bag cost the shopkeeper (in ₹)?
  2. 2.Find the amount when ₹29568 is invested at 25% per year compound interest for 2 years (in ₹).
  3. 3.Ananya can finish a job in 5 days and Dev in 20 days. What fraction of the job do they finish if they work together for 2 days? =
  4. 4.What is the difference between the compound interest and the simple interest on ₹5200 at 25% per year for 2 years (in ₹)?
  5. 5.Change 10 m/s into km/h.
  6. 6.A table fan is marked at ₹120. The shop gives a 5% discount. How much do you pay (in ₹)?
  7. 7.The price of a school bag changes from ₹4600 to ₹3910. By what percent did it come down?
  8. 8.Zoya works twice as fast as Aarav. Together they finish a job in 6 days. How many days would Aarav take alone?
  9. 9.The price of a bicycle is ₹2240. It goes up by 30%. What is the new price (in ₹)?
  10. 10.A shop sells an average of 56 kg of sugar a day for 2 days, and then 32 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
  11. 11.Arjun’s father is five times as old as Arjun. The sum of their ages is 84 years. How old is the father?
  12. 12.Farhan is 9 years older than Isha. In 5 years, the sum of their ages will be 33. How old is Isha now?
  13. 13.How many minutes does a car take to go 78 km at 30 km/h?
  14. 14.A shopkeeper buys a pair of shoes for ₹80 and sells it for ₹40. Find the loss percent.
  15. 15.The average of 5 numbers is 55. When one more number is added, the average becomes 56. What number was added?
  16. 16.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?
  17. 17.Diya’s father is three times as old as Diya. The sum of their ages is 40 years. How old is the father?
  18. 18.Change 35 m/s into km/h.
  19. 19.Vivaan’s father is three times as old as Vivaan. The sum of their ages is 52 years. How old is the father?
  20. 20.Change 36 km/h into metres per second.
  21. 21.A shopkeeper buys a pressure cooker for ₹400 and sells it for ₹200. Find the loss percent.
  22. 22.A price comes down by 20% and then comes down by 15% more. By what percent has it come down in all? =
  23. 23.The price of a school bag changes from ₹3800 to ₹3990. By what percent did it go up?
  24. 24.The price of a school bag changes from ₹1100 to ₹770. By what percent did it come down?
  25. 25.Aditya is 8 years older than Kavya. In 4 years, the sum of their ages will be 74. How old is Kavya now?
  26. 26.A pair of shoes marked at ₹680 is sold for ₹612. What is the discount percent?
  27. 27.A pressure cooker bought for ₹980 is sold at a loss of 5%. What is the selling price (in ₹)?
  28. 28.A shopkeeper buys a study lamp for ₹700 and sells it for ₹1050. Find the profit percent.
  29. 29.Two discounts of 25% and 25%, one after the other, are the same as one discount of what percent? =
  30. 30.The average of 7 numbers is 28. When one more number is added, the average becomes 30. What number was added?
  31. 31.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
  32. 32.A table fan is marked at ₹160. The shop gives a 10% discount. How much do you pay (in ₹)?
  33. 33.A shopkeeper buys a pressure cooker for ₹180 and sells it for ₹144. Find the loss percent.
  34. 34.Change 18 km/h into metres per second.
  35. 35.Find the simple interest on ₹16300 at 11% per year for 4 years (in ₹).
  36. 36.The simple interest on ₹16700 for 3 years is ₹1002. What is the rate of interest (% per year)?
  37. 37.Find the compound interest on ₹9575 at 20% per year for 2 years, added every year (in ₹).
  38. 38.Aditya can finish a job in 17 days and Saanvi in 15 days. What fraction of the job do they finish if they work together for 3 days? =
  39. 39.Find the compound interest on ₹15625 at 8% per year for 3 years, added every year (in ₹).
  40. 40.Aditya can finish a job in 20 days and Dev in 16 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =

Answer key

  1. 120
  2. 46200
  3. 1/2
  4. 325
  5. 36
  6. 114
  7. 15
  8. 18
  9. 2912
  10. 44
  11. 70
  12. 7
  13. 156
  14. 50
  15. 61
  16. 288
  17. 30
  18. 126
  19. 39
  20. 10
  21. 50
  22. 32
  23. 5
  24. 30
  25. 29
  26. 10
  27. 931
  28. 50
  29. 43.75
  30. 44
  31. 19
  32. 144
  33. 20
  34. 5
  35. 7172
  36. 2
  37. 4213
  38. 32/85
  39. 4058
  40. 80/9

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