Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 521 · 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.A town has 3820 people. Its population grows by 20%. How many people live there now?
2. 2.What is the difference between the compound interest and the simple interest on ₹27600 at 15% per year for 2 years (in ₹)?
3. 3.Diya puts ₹2700 in a bank at 8% simple interest per year. How much will she have after 5 years (in ₹)?
4. 4.A water tank holds 920 litres. 40% of the water is used. How many litres are left?
5. 5.The average weight of 9 children is 33 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
6. 6.Change 18 km/h into metres per second.
7. 7.Change 40 m/s into km/h.
8. 8.The price of a bicycle is ₹3940. It goes up by 40%. What is the new price (in ₹)?
9. 9.A shopkeeper buys a bicycle for ₹360 and sells it for ₹378. Find the profit percent.
10. 10.A water tank holds 4560 litres. 5% of the water is used. How many litres are left?
11. 11.Sneha can finish a job in 4 days and Arjun in 16 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
12. 12.Kavya’s father is twice as old as Kavya. The sum of their ages is 27 years. How old is Kavya?
13. 13.The average of 4 numbers is 33. When one more number is added, the average becomes 37. What number was added?
14. 14.A study lamp is marked at ₹880. The shop gives a 10% discount. How much do you pay (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹8000 at 25% per year for 2 years (in ₹)?
16. 16.A table fan bought for ₹1280 is sold at a profit of 15%. What is the selling price (in ₹)?
17. 17.Marks of 4 friends in a quiz: 30, 26, 26, 78. What is their average mark?
18. 18.The average weight of 11 children is 34 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
19. 19.Manav and Kavya together finish a job in 4 days. Manav alone takes 6 days. How many days would Kavya take alone?
20. 20.What sum of money earns ₹980 simple interest in 1 year at 14% per year (in ₹)?
21. 21.Find the simple interest on ₹17100 at 2% per year for 3 years (in ₹).
22. 22.Diya puts ₹10700 in a bank at 2% simple interest per year. How much will she have after 3 years (in ₹)?
23. 23.A bicycle marked at ₹2780 is sold for ₹2363. What is the discount percent?
24. 24.Find the compound interest on ₹28750 at 4% per year for 2 years, added every year (in ₹).
25. 25.Diya puts ₹13500 in a bank at 4% simple interest per year. How much will she have after 5 years (in ₹)?
26. 26.Nisha and Isha together finish a job in 6 days. Nisha alone takes 9 days. How many days would Isha take alone?
27. 27.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
28. 28.The simple interest on ₹8400 for 1 year is ₹420. What is the rate of interest (% per year)?
29. 29.Priya is 9 years older than Ishaan. In 4 years, the sum of their ages will be 51. How old is Ishaan now?
30. 30.A bicycle bought for ₹780 is sold at a loss of 30%. What is the selling price (in ₹)?
31. 31.By selling a school bag for ₹216, a shopkeeper makes a loss of 10%. What did the school bag cost the shopkeeper (in ₹)?
32. 32.A water tank holds 4840 litres. 50% of the water is used. How many litres are left?
33. 33.Find the simple interest on ₹9100 at 14% per year for 1 year (in ₹).
34. 34.A shopkeeper buys a table fan for ₹1000 and sells it for ₹800. Find the loss percent.
35. 35.Manav’s batting average after 13 innings is 28 runs. How many runs must Manav score in the next innings to raise the average to 31?
36. 36.The average of 7 numbers is 18. When one more number is added, the average becomes 20. What number was added?
37. 37.The average of 6 numbers is 36. When one more number is added, the average becomes 40. What number was added?
38. 38.The price of a school bag changes from ₹4380 to ₹3723. By what percent did it come down?
39. 39.A pair of shoes is marked at ₹4400. The shop gives a 50% discount. How much do you pay (in ₹)?
40. 40.A study lamp bought for ₹1960 is sold at a profit of 40%. What is the selling price (in ₹)?

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