Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 765 · 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 amount when ₹8000 is invested at 15% per year compound interest for 2 years (in ₹).
2. 2.A pressure cooker bought for ₹2000 is sold at a profit of 15%. What is the selling price (in ₹)?
3. 3.The average of 8 numbers is 58. When one more number is added, the average becomes 61. What number was added?
4. 4.In 25 years, Rahul will be twice as old as Rahul was 4 years ago. How old is Rahul now?
5. 5.Dev can finish a job in 11 days and Sneha in 20 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
6. 6.Meera’s father is five times as old as Meera. The sum of their ages is 66 years. How old is the father?
7. 7.A shopkeeper buys a study lamp for ₹1360 and sells it for ₹1632. Find the profit percent.
8. 8.Change 15 m/s into km/h.
9. 9.The average weight of 10 children is 28 kg. One child, who weighs 46 kg, leaves the group. What is the new average weight (in kg)?
10. 10.A water tank holds 4240 litres. 30% of the water is used. How many litres are left?
11. 11.Diya’s father is twice as old as Diya. The sum of their ages is 36 years. How old is the father?
12. 12.Change 72 km/h into metres per second.
13. 13.Ishaan and Nisha together finish a job in 2 days. Ishaan alone takes 3 days. How many days would Nisha take alone?
14. 14.A cricket bat is marked at ₹1240. The shop gives a 5% discount. How much do you pay (in ₹)?
15. 15.A car runs for 3 hours at 57 km/h and then for 2 hours at 52 km/h. What is its average speed for the whole journey (in km/h)?
16. 16.In how many years will ₹5400 earn ₹1296 as simple interest at 12% per year?
17. 17.The average of 8 numbers is 46. When one more number is added, the average becomes 47. What number was added?
18. 18.After a 40% discount, a watch costs ₹2664. What was its marked price (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
20. 20.The price of a school bag changes from ₹1280 to ₹1408. By what percent did it go up?
21. 21.Arjun is 6 years older than Meera. In 2 years, the sum of their ages will be 38. How old is Meera now?
22. 22.What sum of money earns ₹1413 simple interest in 1 year at 9% per year (in ₹)?
23. 23.Saanvi works twice as fast as Karan. Together they finish a job in 6 days. How many days would Karan take alone?
24. 24.The simple interest on ₹10400 for 4 years is ₹832. What is the rate of interest (% per year)?
25. 25.A shopkeeper buys a pressure cooker for ₹1380 and sells it for ₹966. Find the loss percent.
26. 26.A watch marked at ₹4840 is sold for ₹3630. What is the discount percent?
27. 27.A school bag is marked at ₹4200. The shop gives a 20% discount. How much do you pay (in ₹)?
28. 28.Kabir cycles to his school at 12 km/h and comes back by the same road at 24 km/h. What is his average speed for the whole trip (in km/h)?
29. 29.By selling a cricket bat for ₹390, a shopkeeper makes a profit of 30%. What did the cricket bat cost the shopkeeper (in ₹)?
30. 30.Farhan can finish a job in 6 days and Ananya in 21 days. Farhan works alone for 4 days and then stops. Ananya finishes the rest. How many days does Ananya take?
31. 31.Marks of 6 friends in a quiz: 57, 51, 68, 76, 68, 52. What is their average mark?
32. 32.Arjun is 10 years older than Tara. In 6 years, the sum of their ages will be 36. How old is Tara now?
33. 33.Sneha can finish a job in 3 days and Kabir in 19 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
34. 34.A town has 2740 people. Its population grows by 15%. How many people live there now?
35. 35.Marks of 5 friends in a quiz: 40, 34, 34, 45, 72. What is their average mark?
36. 36.A price goes up by 30% and then comes down by 10%. By what percent has it gone up in all? =
37. 37.A water tank holds 4320 litres. 5% of the water is used. How many litres are left?
38. 38.Farhan’s father is five times as old as Farhan. The sum of their ages is 54 years. How old is Farhan?
39. 39.Change 10 m/s into km/h.
40. 40.A town has 700 people. Its population grows by 20%. How many people live there now?

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