Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 809 · 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 shopkeeper buys a study lamp for ₹680 and sells it for ₹1020. Find the profit percent.
2. 2.Rohan and Arjun together finish a job in 18 days. Rohan alone takes 30 days. How many days would Arjun take alone?
3. 3.In 7 years, Meera will be twice as old as Meera was 4 years ago. How old is Meera now?
4. 4.Diya puts ₹1200 in a bank at 6% simple interest per year. How much will she have after 1 year (in ₹)?
5. 5.Change 15 m/s into km/h.
6. 6.What sum of money earns ₹588 simple interest in 1 year at 4% per year (in ₹)?
7. 7.Find the simple interest on ₹15900 at 6% per year for 4 years (in ₹).
8. 8.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
9. 9.The average of 4 numbers is 41. When one more number is added, the average becomes 47. What number was added?
10. 10.Zoya works twice as fast as Rohan. Together they finish a job in 7 days. How many days would Rohan take alone?
11. 11.Marks of 4 friends in a quiz: 45, 45, 41, 29. What is their average mark?
12. 12.Kavya’s father is five times as old as Kavya. The sum of their ages is 84 years. How old is Kavya?
13. 13.A shopkeeper buys a watch for ₹460 and sells it for ₹575. Find the profit percent.
14. 14.A water tank holds 3960 litres. 30% of the water is used. How many litres are left?
15. 15.The average of 6 numbers is 22. When one more number is added, the average becomes 24. What number was added?
16. 16.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
17. 17.A price comes down by 15% and then comes down by 30% more. By what percent has it come down in all? =
18. 18.Change 90 km/h into metres per second.
19. 19.By selling a study lamp for ₹650, a shopkeeper makes a profit of 30%. What did the study lamp cost the shopkeeper (in ₹)?
20. 20.The average of 5 numbers is 48. When one more number is added, the average becomes 49. What number was added?
21. 21.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
22. 22.A shop sells an average of 22 kg of sugar a day for 6 days, and then 56 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
23. 23.A shopkeeper buys a watch for ₹120 and sells it for ₹156. Find the profit percent.
24. 24.A watch is marked at ₹825. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
25. 25.Change 5 m/s into km/h.
26. 26.A shop sells 2600 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
27. 27.Rahul can finish a job in 5 days and Kavya in 13 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
28. 28.Meera’s father is five times as old as Meera. The sum of their ages is 42 years. How old is Meera?
29. 29.Kavya’s father is twice as old as Kavya. The sum of their ages is 27 years. How old is the father?
30. 30.A price comes down by 50% and then comes down by 15% more. By what percent has it come down in all? =
31. 31.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
32. 32.The average weight of 11 children is 31 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
33. 33.Pooja’s father is four times as old as Pooja. The sum of their ages is 75 years. How old is Pooja?
34. 34.Find the compound interest on ₹12825 at 20% per year for 2 years, added every year (in ₹).
35. 35.The average of 9 numbers is 53. When one more number is added, the average becomes 55. What number was added?
36. 36.Priya is 8 years older than Ishaan. In 3 years, the sum of their ages will be 38. How old is Ishaan now?
37. 37.The price of a school bag changes from ₹660 to ₹330. By what percent did it come down?
38. 38.A bus runs at 69 km/h. How far does it go in 20 minutes (in km)?
39. 39.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
40. 40.In 21 years, Kabir will be twice as old as Kabir was 3 years ago. How old is Kabir now?

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