Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 770 · 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 ₹2400 at 5% per year for 2 years (in ₹)?
2. 2.By selling a cricket bat for ₹2850, a shopkeeper makes a profit of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
3. 3.A pressure cooker bought for ₹560 is sold at a loss of 15%. What is the selling price (in ₹)?
4. 4.The average weight of 8 children is 45 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
5. 5.Marks of 5 friends in a quiz: 63, 54, 73, 50, 70. What is their average mark?
6. 6.A watch is marked at ₹2500. The shop gives a 5% discount. How much do you pay (in ₹)?
7. 7.By selling a study lamp for ₹1225, a shopkeeper makes a profit of 25%. What did the study lamp cost the shopkeeper (in ₹)?
8. 8.By selling a cricket bat for ₹506, a shopkeeper makes a profit of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
9. 9.A shop sells 3260 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
10. 10.In how many years will ₹7700 earn ₹3850 as simple interest at 10% per year?
11. 11.Kavya’s father is twice as old as Kavya. The sum of their ages is 24 years. How old is Kavya?
12. 12.Find the simple interest on ₹5700 at 14% per year for 3 years (in ₹).
13. 13.A watch is marked at ₹508. The shop takes 50% off, and then a further 50% off the new price. How much do you pay (in ₹)?
14. 14.A water tank holds 5000 litres. 40% of the water is used. How many litres are left?
15. 15.The average weight of 7 children is 39 kg. One child, who weighs 57 kg, leaves the group. What is the new average weight (in kg)?
16. 16.Rohan works twice as fast as Pooja. Together they finish a job in 3 days. How many days would Pooja take alone?
17. 17.Find the amount when ₹46875 is invested at 20% per year compound interest for 3 years (in ₹).
18. 18.Marks of 5 friends in a quiz: 46, 19, 26, 30, 49. What is their average mark?
19. 19.The average of 8 numbers is 24. When one more number is added, the average becomes 25. What number was added?
20. 20.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 ₹)?
21. 21.The price of a bicycle is ₹3620. It goes up by 10%. What is the new price (in ₹)?
22. 22.In how many years will ₹6800 earn ₹2176 as simple interest at 8% per year?
23. 23.Diya works three times as fast as Sneha. Together they finish a job in 10 days. How many days would Sneha take alone?
24. 24.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
25. 25.By selling a cricket bat for ₹378, a shopkeeper makes a profit of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
26. 26.By selling a cricket bat for ₹1764, a shopkeeper makes a profit of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
27. 27.What sum of money earns ₹1188 simple interest in 3 years at 2% per year (in ₹)?
28. 28.In how many years will ₹1700 earn ₹663 as simple interest at 13% per year?
29. 29.Two discounts of 25% and 20%, one after the other, are the same as one discount of what percent? =
30. 30.In 12 years, Aditya will be three times as old as Aditya was 4 years ago. How old is Aditya now?
31. 31.By selling a pair of shoes for ₹126, a shopkeeper makes a profit of 5%. What did the pair of shoes cost the shopkeeper (in ₹)?
32. 32.Arjun and Nisha together finish a job in 4 days. Arjun alone takes 12 days. How many days would Nisha take alone?
33. 33.What sum of money earns ₹945 simple interest in 1 year at 9% per year (in ₹)?
34. 34.By selling a study lamp for ₹156, a shopkeeper makes a profit of 30%. What did the study lamp cost the shopkeeper (in ₹)?
35. 35.Zoya’s batting average after 7 innings is 30 runs. How many runs must Zoya score in the next innings to raise the average to 35?
36. 36.A water tank holds 4600 litres. 5% of the water is used. How many litres are left?
37. 37.What sum of money earns ₹392 simple interest in 1 year at 7% per year (in ₹)?
38. 38.Diya and Zoya together finish a job in 3 days. Diya alone takes 6 days. How many days would Zoya take alone?
39. 39.5 years ago, Aarav’s mother was three times as old as Aarav. The mother is 41 years old now. How old is Aarav now?
40. 40.Kabir cycles to his school at 56 km/h and comes back by the same road at 72 km/h. What is his average speed for the whole trip (in km/h)?

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