Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 247 · 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.Tara’s father is three times as old as Tara. The sum of their ages is 20 years. How old is Tara?
2. 2.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹35625 at 12% per year for 2 years, added every year (in ₹).
4. 4.A watch is marked at ₹2800. The shop gives a 10% discount. How much do you pay (in ₹)?
5. 5.The average of 6 numbers is 18. When one more number is added, the average becomes 20. What number was added?
6. 6.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
7. 7.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =
8. 8.A price goes up by 40% and then goes up by 30% more. By what percent has it gone up in all? =
9. 9.Manav’s batting average after 12 innings is 21 runs. How many runs must Manav score in the next innings to raise the average to 22?
10. 10.Find the amount when ₹30900 is invested at 10% per year compound interest for 2 years (in ₹).
11. 11.Find the amount when ₹21875 is invested at 8% per year compound interest for 2 years (in ₹).
12. 12.The price of a school bag changes from ₹2240 to ₹2352. By what percent did it go up?
13. 13.Kabir cycles to his school at 70 km/h and comes back by the same road at 28 km/h. What is his average speed for the whole trip (in km/h)?
14. 14.A shopkeeper buys a watch for ₹240 and sells it for ₹228. Find the loss percent.
15. 15.Kabir is 8 years older than Arjun. In 3 years, the sum of their ages will be 34. How old is Arjun now?
16. 16.After a 10% discount, a school bag costs ₹1062. What was its marked price (in ₹)?
17. 17.Isha can finish a job in 3 days and Kabir in 6 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
18. 18.Pooja is 7 years older than Ananya. In 2 years, the sum of their ages will be 21. How old is Ananya now?
19. 19.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
20. 20.In 14 years, Farhan will be twice as old as Farhan was 6 years ago. How old is Farhan now?
21. 21.7 years ago, Dev’s mother was four times as old as Dev. The mother is 31 years old now. How old is Dev now?
22. 22.A bicycle bought for ₹340 is sold at a profit of 40%. What is the selling price (in ₹)?
23. 23.The price of a school bag changes from ₹1280 to ₹1024. By what percent did it come down?
24. 24.Dev’s father is three times as old as Dev. The sum of their ages is 32 years. How old is Dev?
25. 25.Find the amount when ₹45000 is invested at 8% per year compound interest for 2 years (in ₹).
26. 26.A study lamp marked at ₹2740 is sold for ₹1370. What is the discount percent?
27. 27.By selling a watch for ₹1792, a shopkeeper makes a profit of 40%. What did the watch cost the shopkeeper (in ₹)?
28. 28.Find the simple interest on ₹14800 at 8% per year for 2 years (in ₹).
29. 29.The average weight of 9 children is 33 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
30. 30.The average of 7 numbers is 22. When one more number is added, the average becomes 27. What number was added?
31. 31.A bus runs at 40 km/h. How far does it go in 15 minutes (in km)?
32. 32.Find the amount when ₹625 is invested at 12% per year compound interest for 2 years (in ₹).
33. 33.A shopkeeper buys a watch for ₹1200 and sells it for ₹960. Find the loss percent.
34. 34.Find the simple interest on ₹12300 at 12% per year for 2 years (in ₹).
35. 35.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
36. 36.Change 20 m/s into km/h.
37. 37.The average of 7 numbers is 55. When one more number is added, the average becomes 56. What number was added?
38. 38.Find the amount when ₹22500 is invested at 4% per year compound interest for 2 years (in ₹).
39. 39.Tara can finish a job in 10 days and Dev in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
40. 40.Arjun can finish a job in 11 days and Kabir in 5 days. What fraction of the job do they finish if they work together for 1 day? =

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