Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 91 · 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.Find the amount when ₹45000 is invested at 10% per year compound interest for 3 years (in ₹).
2. 2.The average weight of 6 children is 31 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
3. 3.Kavya’s father is five times as old as Kavya. The sum of their ages is 90 years. How old is the father?
4. 4.A price goes up by 15% and then goes up by 20% more. By what percent has it gone up in all? =
5. 5.Marks of 4 friends in a quiz: 24, 29, 26, 29. What is their average mark?
6. 6.A bus runs at 36 km/h. How far does it go in 10 minutes (in km)?
7. 7.The average weight of 8 children is 41 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
8. 8.Find the compound interest on ₹29375 at 4% per year for 2 years, added every year (in ₹).
9. 9.Aditya is 3 years older than Vivaan. In 3 years, the sum of their ages will be 31. How old is Vivaan now?
10. 10.The price of a school bag changes from ₹1340 to ₹1474. By what percent did it go up?
11. 11.Change 108 km/h into metres per second.
12. 12.Find the amount when ₹8000 is invested at 5% per year compound interest for 3 years (in ₹).
13. 13.By selling a bicycle for ₹2716, a shopkeeper makes a profit of 40%. What did the bicycle cost the shopkeeper (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
15. 15.A bicycle is marked at ₹4140. The shop gives a 20% discount. How much do you pay (in ₹)?
16. 16.A bus runs at 36 km/h. How far does it go in 30 minutes (in km)?
17. 17.Find the simple interest on ₹17500 at 11% per year for 4 years (in ₹).
18. 18.Two discounts of 50% and 25%, one after the other, are the same as one discount of what percent? =
19. 19.By selling a pressure cooker for ₹1003, a shopkeeper makes a loss of 15%. What did the pressure cooker cost the shopkeeper (in ₹)?
20. 20.Find the amount when ₹30625 is invested at 4% per year compound interest for 2 years (in ₹).
21. 21.The average weight of 5 children is 27 kg. One child, who weighs 31 kg, leaves the group. What is the new average weight (in kg)?
22. 22.Diya puts ₹6500 in a bank at 5% simple interest per year. How much will she have after 2 years (in ₹)?
23. 23.A bus runs at 42 km/h. How far does it go in 20 minutes (in km)?
24. 24.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
25. 25.A pressure cooker bought for ₹720 is sold at a loss of 30%. What is the selling price (in ₹)?
26. 26.A price goes up by 50% and then comes down by 10%. By what percent has it gone up in all? =
27. 27.A shopkeeper buys a pressure cooker for ₹580 and sells it for ₹638. Find the profit percent.
28. 28.Find the compound interest on ₹11200 at 15% per year for 2 years, added every year (in ₹).
29. 29.A water tank holds 1540 litres. 15% of the water is used. How many litres are left?
30. 30.Marks of 5 friends in a quiz: 42, 18, 23, 21, 51. What is their average mark?
31. 31.The price of a school bag changes from ₹520 to ₹624. By what percent did it go up?
32. 32.A study lamp is marked at ₹550. The shop takes 10% off, and then a further 20% off the new price. How much do you pay (in ₹)?
33. 33.Kabir’s batting average after 14 innings is 21 runs. How many runs must Kabir score in the next innings to raise the average to 23?
34. 34.The simple interest on ₹5600 for 5 years is ₹3920. What is the rate of interest (% per year)?
35. 35.The average weight of 5 children is 33 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
36. 36.A bicycle is marked at ₹4260. The shop gives a 20% discount. How much do you pay (in ₹)?
37. 37.By selling a watch for ₹946, a shopkeeper makes a profit of 10%. What did the watch cost the shopkeeper (in ₹)?
38. 38.A water tank holds 660 litres. 25% of the water is used. How many litres are left?
39. 39.Kavya works three times as fast as Manav. Together they finish a job in 11 days. How many days would Manav take alone?
40. 40.By selling a watch for ₹1488, a shopkeeper makes a loss of 20%. What did the watch cost the shopkeeper (in ₹)?

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