Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 774 · 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.The average weight of 8 children is 39 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
2. 2.Change 15 m/s into km/h.
3. 3.Manav can finish a job in 21 days and Rohan in 15 days. Manav works alone for 7 days and then stops. Rohan finishes the rest. How many days does Rohan take?
4. 4.A shopkeeper buys a pressure cooker for ₹580 and sells it for ₹812. Find the profit percent.
5. 5.The simple interest on ₹9900 for 2 years is ₹990. What is the rate of interest (% per year)?
6. 6.In how many years will ₹9000 earn ₹2520 as simple interest at 7% per year?
7. 7.Isha can finish a job in 6 days and Arjun in 24 days. Isha works alone for 5 days and then stops. Arjun finishes the rest. How many days does Arjun take?
8. 8.The average of 8 numbers is 47. When one more number is added, the average becomes 51. What number was added?
9. 9.Find the compound interest on ₹39680 at 25% per year for 3 years, added every year (in ₹).
10. 10.A school bag bought for ₹1220 is sold at a profit of 5%. What is the selling price (in ₹)?
11. 11.By selling a pressure cooker for ₹638, a shopkeeper makes a profit of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
12. 12.3 years ago, Aditya’s mother was four times as old as Aditya. The mother is 39 years old now. How old is Aditya now?
13. 13.The price of a school bag changes from ₹4300 to ₹4945. By what percent did it go up?
14. 14.By selling a watch for ₹442, a shopkeeper makes a loss of 15%. What did the watch cost the shopkeeper (in ₹)?
15. 15.A school bag is marked at ₹848. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
16. 16.Find the amount when ₹46750 is invested at 20% per year compound interest for 2 years (in ₹).
17. 17.Change 54 km/h into metres per second.
18. 18.A price goes up by 20% and then comes down by 5%. By what percent has it gone up in all? =
19. 19.A study lamp marked at ₹500 is sold for ₹450. What is the discount percent?
20. 20.Manav’s father is twice as old as Manav. The sum of their ages is 42 years. How old is Manav?
21. 21.Kabir can finish a job in 18 days and Vivaan in 9 days. What fraction of the job do they finish if they work together for 1 day? =
22. 22.Find the amount when ₹17500 is invested at 12% per year compound interest for 2 years (in ₹).
23. 23.A water tank holds 2300 litres. 50% of the water is used. How many litres are left?
24. 24.Diya is 9 years older than Rohan. In 9 years, the sum of their ages will be 41. How old is Rohan now?
25. 25.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
26. 26.Change 72 km/h into metres per second.
27. 27.A study lamp bought for ₹840 is sold at a loss of 5%. What is the selling price (in ₹)?
28. 28.In how many years will ₹14900 earn ₹1490 as simple interest at 5% per year?
29. 29.In how many years will ₹3400 earn ₹714 as simple interest at 7% per year?
30. 30.A shopkeeper buys a school bag for ₹940 and sells it for ₹799. Find the loss percent.
31. 31.The price of a school bag changes from ₹1160 to ₹1334. By what percent did it go up?
32. 32.A water tank holds 1820 litres. 10% of the water is used. How many litres are left?
33. 33.Pooja’s father is five times as old as Pooja. The sum of their ages is 84 years. How old is Pooja?
34. 34.Change 36 km/h into metres per second.
35. 35.Find the compound interest on ₹42500 at 4% per year for 2 years, added every year (in ₹).
36. 36.Find the compound interest on ₹2400 at 5% per year for 2 years, added every year (in ₹).
37. 37.Change 90 km/h into metres per second.
38. 38.By selling a school bag for ₹432, a shopkeeper makes a loss of 20%. What did the school bag cost the shopkeeper (in ₹)?
39. 39.Manav can finish a job in 7 days and Vivaan in 10 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
40. 40.A pressure cooker is marked at ₹180. The shop gives a 50% discount. How much do you pay (in ₹)?

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