Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 78 · 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.A bicycle is marked at ₹485. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
2. 2.Change 108 km/h into metres per second.
3. 3.By selling a watch for ₹50, a shopkeeper makes a loss of 50%. What did the watch cost the shopkeeper (in ₹)?
4. 4.Change 90 km/h into metres per second.
5. 5.Find the simple interest on ₹19600 at 3% per year for 5 years (in ₹).
6. 6.Arjun is 2 years older than Vivaan. In 5 years, the sum of their ages will be 32. How old is Vivaan now?
7. 7.The price of a school bag changes from ₹3580 to ₹3401. By what percent did it come down?
8. 8.The average weight of 8 children is 30 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
9. 9.Nisha’s father is four times as old as Nisha. The sum of their ages is 45 years. How old is the father?
10. 10.A pressure cooker marked at ₹780 is sold for ₹741. What is the discount percent?
11. 11.The price of a school bag changes from ₹3940 to ₹5910. By what percent did it go up?
12. 12.In how many years will ₹5300 earn ₹1272 as simple interest at 8% per year?
13. 13.Find the amount when ₹5000 is invested at 20% per year compound interest for 3 years (in ₹).
14. 14.A bicycle marked at ₹4440 is sold for ₹3996. What is the discount percent?
15. 15.Vivaan’s batting average after 9 innings is 23 runs. How many runs must Vivaan score in the next innings to raise the average to 26?
16. 16.A water tank holds 2040 litres. 30% of the water is used. How many litres are left?
17. 17.Dev can finish a job in 10 days and Farhan in 20 days. Dev works alone for 3 days and then stops. Farhan finishes the rest. How many days does Farhan take?
18. 18.A study lamp is marked at ₹780. The shop gives a 10% discount. How much do you pay (in ₹)?
19. 19.Rohan can finish a job in 16 days and Aarav in 5 days. What fraction of the job do they finish if they work together for 1 day? =
20. 20.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
21. 21.A shopkeeper buys a cricket bat for ₹1560 and sells it for ₹2340. Find the profit percent.
22. 22.After a 10% discount, a pair of shoes costs ₹2142. What was its marked price (in ₹)?
23. 23.Marks of 5 friends in a quiz: 35, 59, 51, 41, 49. What is their average mark?
24. 24.A watch is marked at ₹2440. The shop gives a 25% discount. How much do you pay (in ₹)?
25. 25.A study lamp marked at ₹1520 is sold for ₹1064. What is the discount percent?
26. 26.Meera’s father is twice as old as Meera. The sum of their ages is 21 years. How old is the father?
27. 27.The average weight of 9 children is 39 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
28. 28.The price of a bicycle is ₹80. It goes up by 10%. What is the new price (in ₹)?
29. 29.Arjun can finish a job in 11 days and Nisha in 13 days. What fraction of the job do they finish if they work together for 3 days? =
30. 30.A pressure cooker is marked at ₹2080. The shop gives a 10% discount. How much do you pay (in ₹)?
31. 31.Kabir cycles to his school at 10 km/h and comes back by the same road at 15 km/h. What is his average speed for the whole trip (in km/h)?
32. 32.The average of 9 numbers is 33. When one more number is added, the average becomes 34. What number was added?
33. 33.A watch bought for ₹1440 is sold at a loss of 15%. What is the selling price (in ₹)?
34. 34.The simple interest on ₹5900 for 5 years is ₹1180. What is the rate of interest (% per year)?
35. 35.Find the compound interest on ₹275 at 20% per year for 2 years, added every year (in ₹).
36. 36.A water tank holds 3100 litres. 15% of the water is used. How many litres are left?
37. 37.Find the simple interest on ₹11500 at 7% per year for 3 years (in ₹).
38. 38.Diya puts ₹4400 in a bank at 10% simple interest per year. How much will she have after 3 years (in ₹)?
39. 39.A pressure cooker is marked at ₹595. The shop takes 20% off, and then a further 25% off the new price. How much do you pay (in ₹)?
40. 40.In how many years will ₹16200 earn ₹4860 as simple interest at 10% per year?

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