Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 721 · 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.The average of 4 numbers is 40. When one more number is added, the average becomes 46. What number was added?
2. 2.What sum of money earns ₹414 simple interest in 3 years at 3% per year (in ₹)?
3. 3.A water tank holds 4080 litres. 40% of the water is used. How many litres are left?
4. 4.Ishaan can finish a job in 5 days and Tara in 30 days. Ishaan works alone for 4 days and then stops. Tara finishes the rest. How many days does Tara take?
5. 5.The price of a bicycle is ₹4040. It goes up by 5%. What is the new price (in ₹)?
6. 6.A shop sells an average of 54 kg of sugar a day for 4 days, and then 47 kg a day for the next 3 days. What is the average sale per day for all 7 days (in kg)?
7. 7.2 years ago, Ishaan’s mother was three times as old as Ishaan. The mother is 23 years old now. How old is Ishaan now?
8. 8.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
9. 9.In how many years will ₹16200 earn ₹2592 as simple interest at 8% per year?
10. 10.Isha and Nisha together finish a job in 6 days. Isha alone takes 24 days. How many days would Nisha take alone?
11. 11.The simple interest on ₹4600 for 2 years is ₹1196. What is the rate of interest (% per year)?
12. 12.In how many years will ₹19000 earn ₹3420 as simple interest at 6% per year?
13. 13.A water tank holds 2900 litres. 20% of the water is used. How many litres are left?
14. 14.A pair of shoes is marked at ₹625. The shop takes 20% off, and then a further 10% off the new price. How much do you pay (in ₹)?
15. 15.8 years ago, Nisha’s mother was four times as old as Nisha. The mother is 24 years old now. How old is Nisha now?
16. 16.The price of a school bag changes from ₹3440 to ₹5160. By what percent did it go up?
17. 17.Find the amount when ₹13125 is invested at 12% per year compound interest for 2 years (in ₹).
18. 18.The price of a school bag changes from ₹2420 to ₹3025. By what percent did it go up?
19. 19.A price goes up by 30% and then goes up by 40% more. By what percent has it gone up in all? =
20. 20.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
21. 21.Find the amount when ₹31250 is invested at 12% per year compound interest for 3 years (in ₹).
22. 22.By selling a pair of shoes for ₹1248, a shopkeeper makes a profit of 20%. What did the pair of shoes cost the shopkeeper (in ₹)?
23. 23.In 24 years, Sneha will be twice as old as Sneha was 5 years ago. How old is Sneha now?
24. 24.After a 20% discount, a pressure cooker costs ₹1168. What was its marked price (in ₹)?
25. 25.What sum of money earns ₹5136 simple interest in 4 years at 12% per year (in ₹)?
26. 26.After a 10% discount, a school bag costs ₹504. What was its marked price (in ₹)?
27. 27.By selling a bicycle for ₹656, a shopkeeper makes a loss of 20%. What did the bicycle cost the shopkeeper (in ₹)?
28. 28.Change 18 km/h into metres per second.
29. 29.Ananya and Karan together finish a job in 3 days. Ananya alone takes 4 days. How many days would Karan take alone?
30. 30.Saanvi works twice as fast as Sneha. Together they finish a job in 6 days. How many days would Sneha take alone?
31. 31.What is the difference between the compound interest and the simple interest on ₹800 at 5% per year for 2 years (in ₹)?
32. 32.A shopkeeper buys a watch for ₹960 and sells it for ₹672. Find the loss percent.
33. 33.Sneha’s batting average after 5 innings is 36 runs. How many runs must Sneha score in the next innings to raise the average to 41?
34. 34.By selling a study lamp for ₹2492, a shopkeeper makes a profit of 40%. What did the study lamp cost the shopkeeper (in ₹)?
35. 35.After a 5% discount, a school bag costs ₹1501. What was its marked price (in ₹)?
36. 36.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
37. 37.The average weight of 7 children is 46 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
38. 38.A price goes up by 20% and then goes up by 50% more. By what percent has it gone up in all? =
39. 39.By selling a cricket bat for ₹180, a shopkeeper makes a profit of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
40. 40.The price of a school bag changes from ₹3580 to ₹5012. By what percent did it go up?

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