Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 28 · 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 watch for ₹1320, a shopkeeper makes a profit of 20%. What did the watch cost the shopkeeper (in ₹)?
2. 2.A car runs for 1 hour at 44 km/h and then for 2 hours at 20 km/h. What is its average speed for the whole journey (in km/h)?
3. 3.A shopkeeper buys a study lamp for ₹240 and sells it for ₹180. Find the loss percent.
4. 4.The simple interest on ₹15800 for 4 years is ₹3160. What is the rate of interest (% per year)?
5. 5.Kabir cycles to his school at 63 km/h and comes back by the same road at 84 km/h. What is his average speed for the whole trip (in km/h)?
6. 6.Ishaan’s father is four times as old as Ishaan. The sum of their ages is 40 years. How old is Ishaan?
7. 7.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
8. 8.Dev is 8 years older than Priya. In 8 years, the sum of their ages will be 66. How old is Priya now?
9. 9.Saanvi’s father is three times as old as Saanvi. The sum of their ages is 52 years. How old is Saanvi?
10. 10.A cricket bat is marked at ₹1325. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
11. 11.By selling a bicycle for ₹1474, a shopkeeper makes a profit of 10%. What did the bicycle cost the shopkeeper (in ₹)?
12. 12.Diya puts ₹18100 in a bank at 12% simple interest per year. How much will she have after 3 years (in ₹)?
13. 13.A water tank holds 2040 litres. 5% of the water is used. How many litres are left?
14. 14.Change 108 km/h into metres per second.
15. 15.After a 5% discount, a school bag costs ₹1273. What was its marked price (in ₹)?
16. 16.A watch bought for ₹660 is sold at a loss of 30%. What is the selling price (in ₹)?
17. 17.Priya’s batting average after 14 innings is 35 runs. How many runs must Priya score in the next innings to raise the average to 37?
18. 18.What sum of money earns ₹1560 simple interest in 1 year at 8% per year (in ₹)?
19. 19.Aarav and Ishaan together finish a job in 8 days. Aarav alone takes 24 days. How many days would Ishaan take alone?
20. 20.What is the difference between the compound interest and the simple interest on ₹41200 at 5% per year for 2 years (in ₹)?
21. 21.By selling a cricket bat for ₹128, a shopkeeper makes a loss of 20%. What did the cricket bat cost the shopkeeper (in ₹)?
22. 22.What sum of money earns ₹910 simple interest in 1 year at 7% per year (in ₹)?
23. 23.Marks of 6 friends in a quiz: 32, 41, 35, 38, 27, 43. What is their average mark?
24. 24.A shopkeeper buys a pressure cooker for ₹240 and sells it for ₹204. Find the loss percent.
25. 25.Marks of 5 friends in a quiz: 68, 43, 63, 71, 40. What is their average mark?
26. 26.Marks of 6 friends in a quiz: 39, 61, 34, 34, 41, 85. What is their average mark?
27. 27.A water tank holds 2600 litres. 10% of the water is used. How many litres are left?
28. 28.A water tank holds 220 litres. 40% of the water is used. How many litres are left?
29. 29.By selling a cricket bat for ₹748, a shopkeeper makes a profit of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
30. 30.Meera is 8 years older than Karan. In 3 years, the sum of their ages will be 56. How old is Karan now?
31. 31.A pair of shoes bought for ₹580 is sold at a loss of 40%. What is the selling price (in ₹)?
32. 32.A bicycle is marked at ₹664. The shop takes 25% off, and then a further 50% off the new price. How much do you pay (in ₹)?
33. 33.A water tank holds 2680 litres. 25% of the water is used. How many litres are left?
34. 34.A town has 2700 people. Its population grows by 10%. How many people live there now?
35. 35.Zoya’s father is three times as old as Zoya. The sum of their ages is 48 years. How old is the father?
36. 36.What is the difference between the compound interest and the simple interest on ₹20000 at 15% per year for 2 years (in ₹)?
37. 37.In 7 years, Isha will be twice as old as Isha was 3 years ago. How old is Isha now?
38. 38.In how many years will ₹8800 earn ₹6600 as simple interest at 15% per year?
39. 39.Aditya’s batting average after 5 innings is 34 runs. How many runs must Aditya score in the next innings to raise the average to 35?
40. 40.Change 10 m/s into km/h.

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