Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 399 · 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.Find the compound interest on ₹40300 at 10% per year for 2 years, added every year (in ₹).
2. 2.Find the compound interest on ₹32000 at 15% per year for 3 years, added every year (in ₹).
3. 3.A shopkeeper buys a school bag for ₹1660 and sells it for ₹2158. Find the profit percent.
4. 4.A water tank holds 4560 litres. 15% of the water is used. How many litres are left?
5. 5.The price of a school bag changes from ₹4100 to ₹3895. By what percent did it come down?
6. 6.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
7. 7.Find the simple interest on ₹2800 at 8% per year for 3 years (in ₹).
8. 8.The average weight of 9 children is 45 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
9. 9.A price goes up by 25% and then goes up by 20% more. By what percent has it gone up in all? =
10. 10.Diya puts ₹500 in a bank at 15% simple interest per year. How much will she have after 1 year (in ₹)?
11. 11.Kavya and Kabir together finish a job in 9 days. Kavya alone takes 18 days. How many days would Kabir take alone?
12. 12.Change 30 m/s into km/h.
13. 13.Diya puts ₹12900 in a bank at 4% simple interest per year. How much will she have after 3 years (in ₹)?
14. 14.By selling a study lamp for ₹416, a shopkeeper makes a loss of 20%. What did the study lamp cost the shopkeeper (in ₹)?
15. 15.The price of a school bag changes from ₹1400 to ₹840. By what percent did it come down?
16. 16.Nisha can finish a job in 6 days and Zoya in 7 days. What fraction of the job do they finish if they work together for 1 day? =
17. 17.A car runs for 2 hours at 80 km/h and then for 4 hours at 44 km/h. What is its average speed for the whole journey (in km/h)?
18. 18.Ananya can finish a job in 4 days and Sneha in 9 days. What fraction of the job do they finish if they work together for 2 days? =
19. 19.Find the simple interest on ₹5700 at 10% per year for 1 year (in ₹).
20. 20.Marks of 6 friends in a quiz: 32, 47, 25, 25, 38, 25. What is their average mark?
21. 21.A water tank holds 2420 litres. 30% of the water is used. How many litres are left?
22. 22.The average of 9 numbers is 22. When one more number is added, the average becomes 23. What number was added?
23. 23.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
24. 24.Farhan can finish a job in 8 days and Diya in 18 days. What fraction of the job do they finish if they work together for 1 day? =
25. 25.In how many years will ₹9400 earn ₹1880 as simple interest at 10% per year?
26. 26.Karan’s father is five times as old as Karan. The sum of their ages is 60 years. How old is the father?
27. 27.What sum of money earns ₹4515 simple interest in 5 years at 7% per year (in ₹)?
28. 28.Marks of 5 friends in a quiz: 93, 77, 92, 98, 60. What is their average mark?
29. 29.A bicycle is marked at ₹2940. The shop gives a 5% discount. How much do you pay (in ₹)?
30. 30.Marks of 4 friends in a quiz: 68, 62, 69, 81. What is their average mark?
31. 31.A watch is marked at ₹720. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
32. 32.Two discounts of 25% and 10%, one after the other, are the same as one discount of what percent? =
33. 33.Dev’s father is twice as old as Dev. The sum of their ages is 15 years. How old is the father?
34. 34.The average of 4 numbers is 16. When one more number is added, the average becomes 21. What number was added?
35. 35.The simple interest on ₹11500 for 1 year is ₹1035. What is the rate of interest (% per year)?
36. 36.The average of 5 numbers is 29. When one more number is added, the average becomes 30. What number was added?
37. 37.A price goes up by 50% and then goes up by 30% more. By what percent has it gone up in all? =
38. 38.A pressure cooker is marked at ₹648. The shop takes 25% off, and then a further 50% off the new price. How much do you pay (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
40. 40.A price goes up by 30% and then goes up by 15% more. By what percent has it gone up in all? =

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