Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 647 · 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 school bag bought for ₹320 is sold at a profit of 15%. What is the selling price (in ₹)?
2. 2.Dev works three times as fast as Rahul. Together they finish a job in 3 days. How many days would Rahul take alone?
3. 3.Change 30 m/s into km/h.
4. 4.Find the amount when ₹13200 is invested at 5% per year compound interest for 2 years (in ₹).
5. 5.What sum of money earns ₹2440 simple interest in 4 years at 10% per year (in ₹)?
6. 6.Arjun is 3 years older than Zoya. In 8 years, the sum of their ages will be 71. How old is Zoya now?
7. 7.8 years ago, Ananya’s mother was twice as old as Ananya. The mother is 16 years old now. How old is Ananya now?
8. 8.Change 36 km/h into metres per second.
9. 9.What sum of money earns ₹40 simple interest in 4 years at 2% per year (in ₹)?
10. 10.The price of a school bag changes from ₹460 to ₹437. By what percent did it come down?
11. 11.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?
12. 12.Two discounts of 25% and 25%, one after the other, are the same as one discount of what percent? =
13. 13.A water tank holds 3560 litres. 25% of the water is used. How many litres are left?
14. 14.In 17 years, Rahul will be three times as old as Rahul was 3 years ago. How old is Rahul now?
15. 15.Arjun is 3 years older than Saanvi. In 10 years, the sum of their ages will be 65. How old is Saanvi now?
16. 16.The average weight of 10 children is 26 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
17. 17.A shopkeeper buys a cricket bat for ₹1040 and sells it for ₹1248. Find the profit percent.
18. 18.What is the difference between the compound interest and the simple interest on ₹33500 at 10% per year for 2 years (in ₹)?
19. 19.The price of a bicycle is ₹880. It goes up by 40%. What is the new price (in ₹)?
20. 20.A shopkeeper buys a study lamp for ₹860 and sells it for ₹516. Find the loss percent.
21. 21.Two discounts of 50% and 10%, one after the other, are the same as one discount of what percent? =
22. 22.A price goes up by 25% and then goes up by 10% more. By what percent has it gone up in all? =
23. 23.Marks of 4 friends in a quiz: 68, 93, 76, 79. What is their average mark?
24. 24.A shopkeeper buys a study lamp for ₹420 and sells it for ₹546. Find the profit percent.
25. 25.Diya puts ₹14100 in a bank at 3% simple interest per year. How much will she have after 5 years (in ₹)?
26. 26.A price goes up by 30% and then comes down by 20%. By what percent has it gone up in all? =
27. 27.The price of a school bag changes from ₹1480 to ₹1554. By what percent did it go up?
28. 28.The price of a school bag changes from ₹2540 to ₹2032. By what percent did it come down?
29. 29.Two discounts of 20% and 25%, one after the other, are the same as one discount of what percent? =
30. 30.Marks of 6 friends in a quiz: 50, 46, 51, 57, 67, 95. What is their average mark?
31. 31.Isha’s father is five times as old as Isha. The sum of their ages is 84 years. How old is the father?
32. 32.A shopkeeper buys a cricket bat for ₹160 and sells it for ₹112. Find the loss percent.
33. 33.A study lamp is marked at ₹2820. The shop gives a 10% discount. How much do you pay (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹28400 at 20% per year for 2 years (in ₹)?
35. 35.Find the amount when ₹3600 is invested at 20% per year compound interest for 2 years (in ₹).
36. 36.Find the amount when ₹15625 is invested at 4% per year compound interest for 3 years (in ₹).
37. 37.Manav works twice as fast as Saanvi. Together they finish a job in 10 days. How many days would Saanvi take alone?
38. 38.Ananya can finish a job in 28 days and Arjun in 6 days. Ananya works alone for 14 days and then stops. Arjun finishes the rest. How many days does Arjun take?
39. 39.What is the difference between the compound interest and the simple interest on ₹36100 at 20% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹40000 at 5% per year for 3 years, added every year (in ₹).

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