Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 159 · 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.Change 15 m/s into km/h.
2. 2.The average of 9 numbers is 44. When one more number is added, the average becomes 47. What number was added?
3. 3.Kabir cycles to his school at 90 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)?
4. 4.Find the amount when ₹48000 is invested at 5% per year compound interest for 3 years (in ₹).
5. 5.9 years ago, Ananya’s mother was three times as old as Ananya. The mother is 27 years old now. How old is Ananya now?
6. 6.A pressure cooker is marked at ₹640. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
7. 7.A study lamp is marked at ₹440. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
8. 8.Diya puts ₹19700 in a bank at 4% simple interest per year. How much will she have after 4 years (in ₹)?
9. 9.After a 10% discount, a bicycle costs ₹3186. What was its marked price (in ₹)?
10. 10.In how many years will ₹13900 earn ₹2780 as simple interest at 5% per year?
11. 11.Vivaan can finish a job in 11 days and Nisha in 2 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
12. 12.Kabir cycles to his school at 80 km/h and comes back by the same road at 20 km/h. What is his average speed for the whole trip (in km/h)?
13. 13.Find the amount when ₹45900 is invested at 10% per year compound interest for 2 years (in ₹).
14. 14.Change 108 km/h into metres per second.
15. 15.What is the difference between the compound interest and the simple interest on ₹37600 at 15% per year for 2 years (in ₹)?
16. 16.A price comes down by 5% and then comes down by 20% more. By what percent has it come down in all? =
17. 17.A shopkeeper buys a study lamp for ₹820 and sells it for ₹984. Find the profit percent.
18. 18.In 6 years, Pooja will be three times as old as Pooja was 4 years ago. How old is Pooja now?
19. 19.Kabir is 7 years older than Aarav. In 5 years, the sum of their ages will be 65. How old is Aarav now?
20. 20.A table fan marked at ₹2960 is sold for ₹2220. What is the discount percent?
21. 21.The price of a bicycle is ₹4480. It goes up by 40%. What is the new price (in ₹)?
22. 22.What sum of money earns ₹3825 simple interest in 3 years at 15% per year (in ₹)?
23. 23.Sneha works three times as fast as Dev. Together they finish a job in 10 days. How many days would Dev take alone?
24. 24.The price of a school bag changes from ₹3760 to ₹3572. By what percent did it come down?
25. 25.By selling a watch for ₹854, a shopkeeper makes a loss of 30%. What did the watch cost the shopkeeper (in ₹)?
26. 26.A shopkeeper buys a bicycle for ₹100 and sells it for ₹140. Find the profit percent.
27. 27.A car runs for 1 hour at 37 km/h and then for 2 hours at 70 km/h. What is its average speed for the whole journey (in km/h)?
28. 28.Find the compound interest on ₹46875 at 8% per year for 3 years, added every year (in ₹).
29. 29.A shop sells an average of 43 kg of sugar a day for 2 days, and then 58 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
30. 30.Find the amount when ₹4400 is invested at 5% per year compound interest for 2 years (in ₹).
31. 31.A table fan is marked at ₹4320. The shop gives a 5% discount. How much do you pay (in ₹)?
32. 32.After a 50% discount, a watch costs ₹720. What was its marked price (in ₹)?
33. 33.The average of 8 numbers is 15. When one more number is added, the average becomes 19. What number was added?
34. 34.Marks of 4 friends in a quiz: 29, 5, 23, 23. What is their average mark?
35. 35.The average weight of 7 children is 43 kg. One child, who weighs 61 kg, leaves the group. What is the new average weight (in kg)?
36. 36.The average weight of 9 children is 39 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
37. 37.A price goes up by 20% and then goes up by 50% more. By what percent has it gone up in all? =
38. 38.Find the amount when ₹12800 is invested at 15% per year compound interest for 2 years (in ₹).
39. 39.Kabir is 8 years older than Arjun. In 9 years, the sum of their ages will be 50. How old is Arjun now?
40. 40.Saanvi can finish a job in 7 days and Arjun in 8 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =

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