Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 309 · 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.Aarav works twice as fast as Nisha. Together they finish a job in 9 days. How many days would Nisha take alone?
2. 2.10 years ago, Vivaan’s mother was twice as old as Vivaan. The mother is 18 years old now. How old is Vivaan now?
3. 3.Marks of 5 friends in a quiz: 19, 46, 24, 33, 43. What is their average mark?
4. 4.Change 40 m/s into km/h.
5. 5.A town has 2680 people. Its population grows by 10%. How many people live there now?
6. 6.Find the compound interest on ₹22800 at 5% per year for 2 years, added every year (in ₹).
7. 7.A pressure cooker marked at ₹880 is sold for ₹660. What is the discount percent?
8. 8.Find the amount when ₹4700 is invested at 10% per year compound interest for 2 years (in ₹).
9. 9.Find the amount when ₹31250 is invested at 12% per year compound interest for 3 years (in ₹).
10. 10.4 years ago, Karan’s mother was four times as old as Karan. The mother is 48 years old now. How old is Karan now?
11. 11.How many minutes does a car take to go 98 km at 70 km/h?
12. 12.Find the compound interest on ₹15625 at 8% per year for 2 years, added every year (in ₹).
13. 13.In 20 years, Arjun will be three times as old as Arjun was 6 years ago. How old is Arjun now?
14. 14.A watch is marked at ₹340. The shop gives a 5% discount. How much do you pay (in ₹)?
15. 15.What sum of money earns ₹2345 simple interest in 5 years at 7% per year (in ₹)?
16. 16.Change 15 m/s into km/h.
17. 17.A shop sells an average of 76 kg of sugar a day for 4 days, and then 28 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
18. 18.The price of a school bag changes from ₹1420 to ₹1704. By what percent did it go up?
19. 19.A watch bought for ₹360 is sold at a loss of 20%. What is the selling price (in ₹)?
20. 20.Find the amount when ₹18512 is invested at 25% per year compound interest for 2 years (in ₹).
21. 21.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
22. 22.The average of 8 numbers is 30. When one more number is added, the average becomes 31. What number was added?
23. 23.A shop sells an average of 30 kg of sugar a day for 3 days, and then 23 kg a day for the next 4 days. What is the average sale per day for all 7 days (in kg)?
24. 24.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
25. 25.A car runs for 4 hours at 80 km/h and then for 4 hours at 32 km/h. What is its average speed for the whole journey (in km/h)?
26. 26.What sum of money earns ₹2100 simple interest in 4 years at 3% per year (in ₹)?
27. 27.The average of 7 numbers is 51. When one more number is added, the average becomes 54. What number was added?
28. 28.Find the compound interest on ₹21376 at 25% per year for 3 years, added every year (in ₹).
29. 29.A price goes up by 50% and then comes down by 25%. By what percent has it gone up in all? =
30. 30.A shopkeeper buys a watch for ₹1360 and sells it for ₹1088. Find the loss percent.
31. 31.Two discounts of 50% and 25%, one after the other, are the same as one discount of what percent? =
32. 32.In 9 years, Vivaan will be three times as old as Vivaan was 3 years ago. How old is Vivaan now?
33. 33.The average of 5 numbers is 52. When one more number is added, the average becomes 57. What number was added?
34. 34.A bicycle marked at ₹1840 is sold for ₹1656. What is the discount percent?
35. 35.Find the compound interest on ₹31250 at 8% per year for 3 years, added every year (in ₹).
36. 36.By selling a cricket bat for ₹1012, a shopkeeper makes a profit of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
37. 37.A shopkeeper buys a pressure cooker for ₹100 and sells it for ₹60. Find the loss percent.
38. 38.The price of a school bag changes from ₹2080 to ₹1248. By what percent did it come down?
39. 39.A cricket bat bought for ₹540 is sold at a loss of 50%. What is the selling price (in ₹)?
40. 40.A water tank holds 4820 litres. 50% of the water is used. How many litres are left?

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