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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 205 · 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.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
  2. 2.A price goes up by 20% and then goes up by 20% more. By what percent has it gone up in all? =
  3. 3.Diya puts ₹5900 in a bank at 13% simple interest per year. How much will she have after 4 years (in ₹)?
  4. 4.The average weight of 7 children is 34 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
  5. 5.The simple interest on ₹800 for 1 year is ₹48. What is the rate of interest (% per year)?
  6. 6.What sum of money earns ₹6615 simple interest in 5 years at 9% per year (in ₹)?
  7. 7.A water tank holds 60 litres. 20% of the water is used. How many litres are left?
  8. 8.Arjun is 7 years older than Saanvi. In 2 years, the sum of their ages will be 29. How old is Saanvi now?
  9. 9.Find the amount when ₹14100 is invested at 10% per year compound interest for 2 years (in ₹).
  10. 10.Change 54 km/h into metres per second.
  11. 11.A shopkeeper buys a pair of shoes for ₹660 and sells it for ₹561. Find the loss percent.
  12. 12.A town has 4140 people. Its population grows by 40%. How many people live there now?
  13. 13.The price of a school bag changes from ₹1740 to ₹1392. By what percent did it come down?
  14. 14.Find the simple interest on ₹6800 at 13% per year for 2 years (in ₹).
  15. 15.Vivaan is 2 years older than Rahul. In 7 years, the sum of their ages will be 74. How old is Rahul now?
  16. 16.A shop sells an average of 66 kg of sugar a day for 5 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
  17. 17.A pressure cooker bought for ₹1160 is sold at a profit of 15%. What is the selling price (in ₹)?
  18. 18.Sneha can finish a job in 6 days and Dev in 18 days. Sneha works alone for 5 days and then stops. Dev finishes the rest. How many days does Dev take?
  19. 19.Meera’s batting average after 14 innings is 47 runs. How many runs must Meera score in the next innings to raise the average to 51?
  20. 20.A shop sells 5000 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
  21. 21.Farhan’s father is twice as old as Farhan. The sum of their ages is 24 years. How old is Farhan?
  22. 22.By selling a watch for ₹1748, a shopkeeper makes a profit of 15%. What did the watch cost the shopkeeper (in ₹)?
  23. 23.Ananya can finish a job in 16 days and Nisha in 5 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  24. 24.A table fan is marked at ₹650. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
  25. 25.A shopkeeper buys a watch for ₹1320 and sells it for ₹792. Find the loss percent.
  26. 26.How many minutes does a car take to go 84 km at 35 km/h?
  27. 27.A study lamp marked at ₹4100 is sold for ₹2460. What is the discount percent?
  28. 28.After a 30% discount, a cricket bat costs ₹1498. What was its marked price (in ₹)?
  29. 29.By selling a school bag for ₹1533, a shopkeeper makes a profit of 5%. What did the school bag cost the shopkeeper (in ₹)?
  30. 30.Ananya’s father is five times as old as Ananya. The sum of their ages is 42 years. How old is Ananya?
  31. 31.A school bag marked at ₹2500 is sold for ₹2250. What is the discount percent?
  32. 32.Aarav works twice as fast as Priya. Together they finish a job in 3 days. How many days would Priya take alone?
  33. 33.Find the compound interest on ₹26875 at 8% per year for 2 years, added every year (in ₹).
  34. 34.Kabir’s father is three times as old as Kabir. The sum of their ages is 36 years. How old is the father?
  35. 35.Manav can finish a job in 13 days and Isha in 7 days. What fraction of the job do they finish if they work together for 3 days? =
  36. 36.Rohan’s father is twice as old as Rohan. The sum of their ages is 18 years. How old is the father?
  37. 37.Find the compound interest on ₹35648 at 25% per year for 3 years, added every year (in ₹).
  38. 38.In 29 years, Kabir will be twice as old as Kabir was 4 years ago. How old is Kabir now?
  39. 39.A shopkeeper buys a cricket bat for ₹1280 and sells it for ₹1536. Find the profit percent.
  40. 40.A water tank holds 3880 litres. 40% of the water is used. How many litres are left?

Answer key

  1. 55
  2. 44
  3. 8968
  4. 31
  5. 6
  6. 14700
  7. 48
  8. 9
  9. 17061
  10. 15
  11. 15
  12. 5796
  13. 20
  14. 1768
  15. 29
  16. 56
  17. 1334
  18. 3
  19. 107
  20. 5750
  21. 8
  22. 1520
  23. 80/21
  24. 416
  25. 40
  26. 144
  27. 40
  28. 2140
  29. 1460
  30. 7
  31. 10
  32. 9
  33. 4472
  34. 27
  35. 60/91
  36. 12
  37. 33977
  38. 37
  39. 20
  40. 2328

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