Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 244 · 40 questions

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.

1. 1.By selling a study lamp for ₹2040, a shopkeeper makes a profit of 20%. What did the study lamp cost the shopkeeper (in ₹)?
2. 2.Vivaan can finish a job in 30 days and Farhan in 10 days. Vivaan works alone for 18 days and then stops. Farhan finishes the rest. How many days does Farhan take?
3. 3.In 19 years, Rohan will be twice as old as Rohan was 2 years ago. How old is Rohan now?
4. 4.Change 10 m/s into km/h.
5. 5.Two discounts of 20% and 25%, one after the other, are the same as one discount of what percent? =
6. 6.A shopkeeper buys a pair of shoes for ₹940 and sells it for ₹893. Find the loss percent.
7. 7.By selling a watch for ₹414, a shopkeeper makes a loss of 10%. What did the watch cost the shopkeeper (in ₹)?
8. 8.A shopkeeper buys a bicycle for ₹1620 and sells it for ₹1134. Find the loss percent.
9. 9.In how many years will ₹14900 earn ₹2235 as simple interest at 5% per year?
10. 10.In how many years will ₹6100 earn ₹2379 as simple interest at 13% per year?
11. 11.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
12. 12.3 years ago, Tara’s mother was twice as old as Tara. The mother is 17 years old now. How old is Tara now?
13. 13.Tara’s batting average after 12 innings is 24 runs. How many runs must Tara score in the next innings to raise the average to 28?
14. 14.What is the difference between the compound interest and the simple interest on ₹11200 at 25% per year for 2 years (in ₹)?
15. 15.The simple interest on ₹9900 for 2 years is ₹1782. What is the rate of interest (% per year)?
16. 16.Change 36 km/h into metres per second.
17. 17.A school bag bought for ₹1680 is sold at a loss of 15%. What is the selling price (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹5200 at 25% per year for 2 years (in ₹)?
19. 19.The price of a school bag changes from ₹1500 to ₹1575. By what percent did it go up?
20. 20.Two discounts of 50% and 20%, one after the other, are the same as one discount of what percent? =
21. 21.Change 54 km/h into metres per second.
22. 22.After a 20% discount, a watch costs ₹2592. What was its marked price (in ₹)?
23. 23.A water tank holds 640 litres. 15% of the water is used. How many litres are left?
24. 24.Kabir cycles to his school at 24 km/h and comes back by the same road at 48 km/h. What is his average speed for the whole trip (in km/h)?
25. 25.In how many years will ₹3100 earn ₹372 as simple interest at 3% per year?
26. 26.A shop sells 1500 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
27. 27.A pair of shoes is marked at ₹1080. The shop takes 10% off, and then a further 50% off the new price. How much do you pay (in ₹)?
28. 28.A table fan marked at ₹2760 is sold for ₹1932. What is the discount percent?
29. 29.Two discounts of 10% and 20%, one after the other, are the same as one discount of what percent? =
30. 30.Aditya can finish a job in 14 days and Nisha in 7 days. What fraction of the job do they finish if they work together for 3 days? =
31. 31.After a 15% discount, a watch costs ₹136. What was its marked price (in ₹)?
32. 32.The price of a bicycle is ₹1780. It goes up by 25%. What is the new price (in ₹)?
33. 33.The price of a bicycle is ₹100. It goes up by 15%. What is the new price (in ₹)?
34. 34.Find the amount when ₹10125 is invested at 20% per year compound interest for 2 years (in ₹).
35. 35.A shop sells an average of 46 kg of sugar a day for 6 days, and then 78 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
36. 36.The average of 7 numbers is 60. When one more number is added, the average becomes 61. What number was added?
37. 37.In how many years will ₹9100 earn ₹637 as simple interest at 7% per year?
38. 38.A water tank holds 380 litres. 50% of the water is used. How many litres are left?
39. 39.Change 5 m/s into km/h.
40. 40.A car runs for 3 hours at 47 km/h and then for 3 hours at 69 km/h. What is its average speed for the whole journey (in km/h)?

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