Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 398 · 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.Kabir cycles to his school at 30 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
2. 2.Marks of 6 friends in a quiz: 26, 52, 37, 26, 50, 43. What is their average mark?
3. 3.Change 20 m/s into km/h.
4. 4.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
5. 5.A shopkeeper buys a pair of shoes for ₹840 and sells it for ₹504. Find the loss percent.
6. 6.A shop sells an average of 77 kg of sugar a day for 2 days, and then 49 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
7. 7.In how many years will ₹500 earn ₹70 as simple interest at 14% per year?
8. 8.The average of 9 numbers is 52. When one more number is added, the average becomes 53. What number was added?
9. 9.Kabir’s father is five times as old as Kabir. The sum of their ages is 90 years. How old is the father?
10. 10.By selling a bicycle for ₹336, a shopkeeper makes a loss of 20%. What did the bicycle cost the shopkeeper (in ₹)?
11. 11.A table fan is marked at ₹1420. The shop gives a 30% discount. How much do you pay (in ₹)?
12. 12.Find the amount when ₹48000 is invested at 15% per year compound interest for 3 years (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
14. 14.What sum of money earns ₹396 simple interest in 3 years at 3% per year (in ₹)?
15. 15.A shopkeeper buys a table fan for ₹540 and sells it for ₹432. Find the loss percent.
16. 16.A car runs for 1 hour at 42 km/h and then for 1 hour at 38 km/h. What is its average speed for the whole journey (in km/h)?
17. 17.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?
18. 18.Kavya’s father is four times as old as Kavya. The sum of their ages is 50 years. How old is Kavya?
19. 19.Kabir cycles to his school at 40 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)?
20. 20.Change 5 m/s into km/h.
21. 21.In 4 years, Kabir will be twice as old as Kabir was 5 years ago. How old is Kabir now?
22. 22.Rahul can finish a job in 8 days and Kabir in 14 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
23. 23.By selling a watch for ₹285, a shopkeeper makes a loss of 5%. What did the watch cost the shopkeeper (in ₹)?
24. 24.The price of a bicycle is ₹2720. It goes up by 30%. What is the new price (in ₹)?
25. 25.A watch bought for ₹80 is sold at a loss of 10%. What is the selling price (in ₹)?
26. 26.A study lamp is marked at ₹3360. The shop gives a 5% discount. How much do you pay (in ₹)?
27. 27.Two discounts of 50% and 20%, one after the other, are the same as one discount of what percent? =
28. 28.Isha’s father is four times as old as Isha. The sum of their ages is 75 years. How old is Isha?
29. 29.A price goes up by 40% and then goes up by 30% more. By what percent has it gone up in all? =
30. 30.After a 25% discount, a school bag costs ₹3195. What was its marked price (in ₹)?
31. 31.Find the simple interest on ₹6000 at 7% per year for 1 year (in ₹).
32. 32.A shopkeeper buys a pair of shoes for ₹1840 and sells it for ₹1656. Find the loss percent.
33. 33.A table fan is marked at ₹4520. The shop gives a 40% discount. How much do you pay (in ₹)?
34. 34.The price of a school bag changes from ₹3960 to ₹4158. By what percent did it go up?
35. 35.Saanvi is 9 years older than Vivaan. In 5 years, the sum of their ages will be 73. How old is Vivaan now?
36. 36.The average of 6 numbers is 16. When one more number is added, the average becomes 22. What number was added?
37. 37.A shopkeeper buys a pressure cooker for ₹1780 and sells it for ₹2492. Find the profit percent.
38. 38.Arjun and Rahul together finish a job in 6 days. Arjun alone takes 10 days. How many days would Rahul take alone?
39. 39.Nisha works twice as fast as Arjun. Together they finish a job in 3 days. How many days would Arjun take alone?
40. 40.Find the compound interest on ₹19375 at 12% per year for 2 years, added every year (in ₹).

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