Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 131 · 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 simple interest on ₹18100 at 13% per year for 4 years (in ₹).
2. 2.By selling a study lamp for ₹1026, a shopkeeper makes a loss of 10%. What did the study lamp cost the shopkeeper (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
4. 4.A shopkeeper buys a watch for ₹1220 and sells it for ₹1525. Find the profit percent.
5. 5.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
6. 6.Diya puts ₹4200 in a bank at 12% simple interest per year. How much will she have after 5 years (in ₹)?
7. 7.In how many years will ₹16900 earn ₹2535 as simple interest at 15% per year?
8. 8.Find the simple interest on ₹10200 at 7% per year for 5 years (in ₹).
9. 9.A watch marked at ₹3920 is sold for ₹2352. What is the discount percent?
10. 10.A bicycle bought for ₹940 is sold at a loss of 50%. What is the selling price (in ₹)?
11. 11.Kabir cycles to his school at 55 km/h and comes back by the same road at 66 km/h. What is his average speed for the whole trip (in km/h)?
12. 12.A shop sells an average of 60 kg of sugar a day for 3 days, and then 72 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
13. 13.Find the amount when ₹15625 is invested at 12% per year compound interest for 3 years (in ₹).
14. 14.In 9 years, Aditya will be three times as old as Aditya was 3 years ago. How old is Aditya now?
15. 15.Find the simple interest on ₹2100 at 3% per year for 5 years (in ₹).
16. 16.The average of 7 numbers is 42. When one more number is added, the average becomes 45. What number was added?
17. 17.A watch marked at ₹1600 is sold for ₹960. What is the discount percent?
18. 18.After a 20% discount, a cricket bat costs ₹1600. What was its marked price (in ₹)?
19. 19.What sum of money earns ₹90 simple interest in 1 year at 10% per year (in ₹)?
20. 20.In 14 years, Rohan will be three times as old as Rohan was 6 years ago. How old is Rohan now?
21. 21.Marks of 6 friends in a quiz: 47, 35, 27, 23, 52, 44. What is their average mark?
22. 22.Find the compound interest on ₹28600 at 10% per year for 2 years, added every year (in ₹).
23. 23.A bicycle is marked at ₹4220. The shop gives a 25% discount. How much do you pay (in ₹)?
24. 24.Saanvi works twice as fast as Kabir. Together they finish a job in 3 days. How many days would Kabir take alone?
25. 25.6 years ago, Rohan’s mother was four times as old as Rohan. The mother is 34 years old now. How old is Rohan now?
26. 26.Dev’s father is twice as old as Dev. The sum of their ages is 33 years. How old is the father?
27. 27.What is the difference between the compound interest and the simple interest on ₹43200 at 20% per year for 2 years (in ₹)?
28. 28.The average weight of 12 children is 30 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
29. 29.Marks of 6 friends in a quiz: 58, 48, 50, 51, 63, 90. What is their average mark?
30. 30.Find the amount when ₹31275 is invested at 20% per year compound interest for 2 years (in ₹).
31. 31.A watch is marked at ₹4580. The shop gives a 40% discount. How much do you pay (in ₹)?
32. 32.5 years ago, Rahul’s mother was four times as old as Rahul. The mother is 29 years old now. How old is Rahul now?
33. 33.The price of a school bag changes from ₹460 to ₹391. By what percent did it come down?
34. 34.The average of 8 numbers is 51. When one more number is added, the average becomes 53. What number was added?
35. 35.Kabir cycles to his school at 12 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)?
36. 36.A school bag bought for ₹660 is sold at a loss of 20%. What is the selling price (in ₹)?
37. 37.In how many years will ₹8400 earn ₹840 as simple interest at 10% per year?
38. 38.A pressure cooker marked at ₹1560 is sold for ₹1326. What is the discount percent?
39. 39.The price of a school bag changes from ₹1100 to ₹1540. By what percent did it go up?
40. 40.Aarav can finish a job in 11 days and Ishaan in 8 days. What fraction of the job do they finish if they work together for 2 days? =

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