Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 970 · 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 water tank holds 4740 litres. 25% of the water is used. How many litres are left?
2. 2.By selling a school bag for ₹120, a shopkeeper makes a loss of 40%. What did the school bag cost the shopkeeper (in ₹)?
3. 3.Find the compound interest on ₹36250 at 12% per year for 2 years, added every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹30000 at 15% per year for 2 years (in ₹)?
5. 5.Diya puts ₹17100 in a bank at 3% simple interest per year. How much will she have after 1 year (in ₹)?
6. 6.After a 5% discount, a watch costs ₹3724. What was its marked price (in ₹)?
7. 7.A watch marked at ₹560 is sold for ₹476. What is the discount percent?
8. 8.Aarav can finish a job in 17 days and Aditya in 10 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
9. 9.A bicycle marked at ₹340 is sold for ₹204. What is the discount percent?
10. 10.By selling a table fan for ₹288, a shopkeeper makes a profit of 20%. What did the table fan cost the shopkeeper (in ₹)?
11. 11.After a 50% discount, a pair of shoes costs ₹360. What was its marked price (in ₹)?
12. 12.The average of 4 numbers is 30. When one more number is added, the average becomes 36. What number was added?
13. 13.The average of 9 numbers is 46. When one more number is added, the average becomes 47. What number was added?
14. 14.Find the amount when ₹41875 is invested at 12% per year compound interest for 2 years (in ₹).
15. 15.The price of a school bag changes from ₹2060 to ₹1854. By what percent did it come down?
16. 16.A shopkeeper buys a study lamp for ₹1020 and sells it for ₹1122. Find the profit percent.
17. 17.5 years ago, Farhan’s mother was four times as old as Farhan. The mother is 45 years old now. How old is Farhan now?
18. 18.By selling a pair of shoes for ₹308, a shopkeeper makes a profit of 10%. What did the pair of shoes cost the shopkeeper (in ₹)?
19. 19.By selling a watch for ₹1725, a shopkeeper makes a profit of 25%. What did the watch cost the shopkeeper (in ₹)?
20. 20.Find the amount when ₹23000 is invested at 10% per year compound interest for 3 years (in ₹).
21. 21.8 years ago, Arjun’s mother was twice as old as Arjun. The mother is 14 years old now. How old is Arjun now?
22. 22.10 years ago, Arjun’s mother was twice as old as Arjun. The mother is 26 years old now. How old is Arjun now?
23. 23.A school bag bought for ₹1740 is sold at a profit of 10%. What is the selling price (in ₹)?
24. 24.Change 35 m/s into km/h.
25. 25.Find the simple interest on ₹11100 at 13% per year for 1 year (in ₹).
26. 26.The simple interest on ₹5100 for 5 years is ₹3570. What is the rate of interest (% per year)?
27. 27.A town has 3380 people. Its population grows by 50%. How many people live there now?
28. 28.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
29. 29.A cricket bat is marked at ₹1720. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
30. 30.By selling a bicycle for ₹756, a shopkeeper makes a profit of 5%. What did the bicycle cost the shopkeeper (in ₹)?
31. 31.A table fan marked at ₹2320 is sold for ₹1624. What is the discount percent?
32. 32.What is the difference between the compound interest and the simple interest on ₹8400 at 25% per year for 2 years (in ₹)?
33. 33.By selling a cricket bat for ₹1827, a shopkeeper makes a profit of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
34. 34.Aarav’s batting average after 6 innings is 47 runs. How many runs must Aarav score in the next innings to raise the average to 51?
35. 35.A table fan is marked at ₹550. The shop takes 50% off, and then a further 20% off the new price. How much do you pay (in ₹)?
36. 36.How many minutes does a car take to go 141 km at 36 km/h?
37. 37.In 4 years, Aarav will be twice as old as Aarav was 3 years ago. How old is Aarav now?
38. 38.A shop sells an average of 47 kg of sugar a day for 6 days, and then 39 kg a day for the next 2 days. What is the average sale per day for all 8 days (in kg)?
39. 39.A water tank holds 2260 litres. 40% of the water is used. How many litres are left?
40. 40.Marks of 4 friends in a quiz: 43, 50, 66, 57. What is their average mark?

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