Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 169 · 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.Marks of 5 friends in a quiz: 90, 79, 84, 64, 68. What is their average mark?
2. 2.Kabir cycles to his school at 40 km/h and comes back by the same road at 10 km/h. What is his average speed for the whole trip (in km/h)?
3. 3.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
4. 4.Find the simple interest on ₹4500 at 4% per year for 3 years (in ₹).
5. 5.After a 50% discount, a cricket bat costs ₹2080. What was its marked price (in ₹)?
6. 6.Kavya can finish a job in 9 days and Nisha in 15 days. What fraction of the job do they finish if they work together for 2 days? =
7. 7.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
8. 8.Two discounts of 10% and 20%, one after the other, are the same as one discount of what percent? =
9. 9.Sneha’s father is twice as old as Sneha. The sum of their ages is 30 years. How old is the father?
10. 10.6 years ago, Aarav’s mother was three times as old as Aarav. The mother is 30 years old now. How old is Aarav now?
11. 11.A bicycle marked at ₹1560 is sold for ₹1326. What is the discount percent?
12. 12.A school bag marked at ₹3020 is sold for ₹2869. What is the discount percent?
13. 13.The simple interest on ₹16700 for 5 years is ₹11690. What is the rate of interest (% per year)?
14. 14.Kabir’s father is three times as old as Kabir. The sum of their ages is 36 years. How old is Kabir?
15. 15.A watch is marked at ₹575. The shop takes 20% off, and then a further 50% off the new price. How much do you pay (in ₹)?
16. 16.A water tank holds 4160 litres. 10% of the water is used. How many litres are left?
17. 17.Vivaan can finish a job in 11 days and Dev in 17 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
18. 18.Aarav’s father is twice as old as Aarav. The sum of their ages is 15 years. How old is Aarav?
19. 19.A bicycle is marked at ₹3560. The shop gives a 30% discount. How much do you pay (in ₹)?
20. 20.A pair of shoes marked at ₹1160 is sold for ₹870. What is the discount percent?
21. 21.After a 40% discount, a school bag costs ₹2148. What was its marked price (in ₹)?
22. 22.By selling a pressure cooker for ₹390, a shopkeeper makes a loss of 25%. What did the pressure cooker cost the shopkeeper (in ₹)?
23. 23.Find the amount when ₹31250 is invested at 12% per year compound interest for 3 years (in ₹).
24. 24.A pair of shoes bought for ₹1840 is sold at a profit of 50%. What is the selling price (in ₹)?
25. 25.After a 40% discount, a pressure cooker costs ₹1164. What was its marked price (in ₹)?
26. 26.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
27. 27.Vivaan’s father is twice as old as Vivaan. The sum of their ages is 24 years. How old is Vivaan?
28. 28.A bicycle bought for ₹1500 is sold at a loss of 5%. What is the selling price (in ₹)?
29. 29.Meera works three times as fast as Nisha. Together they finish a job in 8 days. How many days would Nisha take alone?
30. 30.Find the compound interest on ₹32000 at 15% per year for 3 years, added every year (in ₹).
31. 31.The average weight of 8 children is 28 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
32. 32.Diya puts ₹5100 in a bank at 9% simple interest per year. How much will she have after 2 years (in ₹)?
33. 33.Marks of 6 friends in a quiz: 36, 22, 33, 16, 21, 22. What is their average mark?
34. 34.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =
35. 35.A water tank holds 2600 litres. 50% of the water is used. How many litres are left?
36. 36.By selling a study lamp for ₹598, a shopkeeper makes a profit of 15%. What did the study lamp cost the shopkeeper (in ₹)?
37. 37.By selling a bicycle for ₹2162, a shopkeeper makes a profit of 15%. What did the bicycle cost the shopkeeper (in ₹)?
38. 38.A price comes down by 10% and then comes down by 50% more. By what percent has it come down in all? =
39. 39.A bicycle bought for ₹240 is sold at a loss of 30%. What is the selling price (in ₹)?
40. 40.In 17 years, Meera will be three times as old as Meera was 5 years ago. How old is Meera now?

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