Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 740 · 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.What is the difference between the compound interest and the simple interest on ₹12400 at 5% per year for 2 years (in ₹)?
2. 2.Marks of 6 friends in a quiz: 63, 65, 77, 71, 58, 80. What is their average mark?
3. 3.Nisha can finish a job in 4 days and Kabir in 16 days. Nisha works alone for 1 day and then stops. Kabir finishes the rest. How many days does Kabir take?
4. 4.The average of 8 numbers is 17. When one more number is added, the average becomes 23. What number was added?
5. 5.The average weight of 8 children is 46 kg. One child, who weighs 67 kg, leaves the group. What is the new average weight (in kg)?
6. 6.Arjun’s batting average after 5 innings is 50 runs. How many runs must Arjun score in the next innings to raise the average to 51?
7. 7.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
8. 8.Find the compound interest on ₹46080 at 25% per year for 2 years, added every year (in ₹).
9. 9.Rohan’s father is five times as old as Rohan. The sum of their ages is 42 years. How old is the father?
10. 10.Priya’s father is five times as old as Priya. The sum of their ages is 84 years. How old is Priya?
11. 11.Nisha’s batting average after 14 innings is 49 runs. How many runs must Nisha score in the next innings to raise the average to 50?
12. 12.3 years ago, Ishaan’s mother was three times as old as Ishaan. The mother is 12 years old now. How old is Ishaan now?
13. 13.Kabir cycles to his school at 10 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
14. 14.In how many years will ₹11800 earn ₹1062 as simple interest at 9% per year?
15. 15.A school bag bought for ₹1060 is sold at a loss of 30%. What is the selling price (in ₹)?
16. 16.After a 10% discount, a pressure cooker costs ₹1818. What was its marked price (in ₹)?
17. 17.A shop sells 4280 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
18. 18.Find the amount when ₹50000 is invested at 10% per year compound interest for 3 years (in ₹).
19. 19.Marks of 6 friends in a quiz: 65, 55, 56, 42, 42, 82. What is their average mark?
20. 20.By selling a pressure cooker for ₹153, a shopkeeper makes a loss of 15%. What did the pressure cooker cost the shopkeeper (in ₹)?
21. 21.The average weight of 6 children is 26 kg. One child, who weighs 31 kg, leaves the group. What is the new average weight (in kg)?
22. 22.Rohan’s batting average after 6 innings is 36 runs. How many runs must Rohan score in the next innings to raise the average to 37?
23. 23.Saanvi’s father is five times as old as Saanvi. The sum of their ages is 48 years. How old is the father?
24. 24.Priya is 9 years older than Manav. In 8 years, the sum of their ages will be 49. How old is Manav now?
25. 25.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
26. 26.The price of a school bag changes from ₹4320 to ₹3024. By what percent did it come down?
27. 27.Find the compound interest on ₹40000 at 15% per year for 3 years, added every year (in ₹).
28. 28.Find the compound interest on ₹40000 at 12% per year for 2 years, added every year (in ₹).
29. 29.4 years ago, Ananya’s mother was twice as old as Ananya. The mother is 10 years old now. How old is Ananya now?
30. 30.A watch is marked at ₹720. The shop gives a 15% discount. How much do you pay (in ₹)?
31. 31.Arjun’s batting average after 15 innings is 32 runs. How many runs must Arjun score in the next innings to raise the average to 35?
32. 32.Find the compound interest on ₹31250 at 12% per year for 3 years, added every year (in ₹).
33. 33.A study lamp bought for ₹800 is sold at a loss of 40%. What is the selling price (in ₹)?
34. 34.How many minutes does a car take to go 143 km at 39 km/h?
35. 35.After a 20% discount, a pressure cooker costs ₹352. What was its marked price (in ₹)?
36. 36.Find the compound interest on ₹50000 at 15% per year for 2 years, added every year (in ₹).
37. 37.By selling a bicycle for ₹1358, a shopkeeper makes a loss of 30%. What did the bicycle cost the shopkeeper (in ₹)?
38. 38.By selling a pair of shoes for ₹1064, a shopkeeper makes a loss of 30%. What did the pair of shoes cost the shopkeeper (in ₹)?
39. 39.Kabir’s batting average after 10 innings is 48 runs. How many runs must Kabir score in the next innings to raise the average to 53?
40. 40.How many minutes does a car take to go 13 km at 39 km/h?

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