Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 115 · 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 7 numbers is 15. When one more number is added, the average becomes 20. What number was added?
2. 2.Change 90 km/h into metres per second.
3. 3.Kabir cycles to his school at 60 km/h and comes back by the same road at 12 km/h. What is his average speed for the whole trip (in km/h)?
4. 4.Marks of 4 friends in a quiz: 63, 46, 53, 66. What is their average mark?
5. 5.The average of 7 numbers is 17. When one more number is added, the average becomes 18. What number was added?
6. 6.A shop sells 3180 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
7. 7.Farhan can finish a job in 15 days and Pooja in 19 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
8. 8.Sneha can finish a job in 12 days and Zoya in 21 days. Sneha works alone for 8 days and then stops. Zoya finishes the rest. How many days does Zoya take?
9. 9.A shopkeeper buys a school bag for ₹1000 and sells it for ₹800. Find the loss percent.
10. 10.Kabir cycles to his school at 60 km/h and comes back by the same road at 30 km/h. What is his average speed for the whole trip (in km/h)?
11. 11.What sum of money earns ₹1610 simple interest in 1 year at 10% per year (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹21200 at 15% per year for 2 years (in ₹)?
13. 13.Find the amount when ₹10880 is invested at 25% per year compound interest for 3 years (in ₹).
14. 14.In how many years will ₹7900 earn ₹3792 as simple interest at 12% per year?
15. 15.The price of a bicycle is ₹780. It goes up by 5%. What is the new price (in ₹)?
16. 16.Kavya can finish a job in 2 days and Isha in 9 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
17. 17.A shopkeeper buys a watch for ₹160 and sells it for ₹176. Find the profit percent.
18. 18.What sum of money earns ₹133 simple interest in 1 year at 7% per year (in ₹)?
19. 19.How many minutes does a car take to go 16 km at 60 km/h?
20. 20.A study lamp is marked at ₹1720. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
21. 21.A watch is marked at ₹3400. The shop gives a 50% discount. How much do you pay (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
23. 23.In 29 years, Ishaan will be three times as old as Ishaan was 5 years ago. How old is Ishaan now?
24. 24.A shopkeeper buys a watch for ₹300 and sells it for ₹330. Find the profit percent.
25. 25.A shopkeeper buys a pair of shoes for ₹740 and sells it for ₹1036. Find the profit percent.
26. 26.A pressure cooker bought for ₹1660 is sold at a profit of 30%. What is the selling price (in ₹)?
27. 27.Diya puts ₹19600 in a bank at 4% simple interest per year. How much will she have after 4 years (in ₹)?
28. 28.Two discounts of 25% and 25%, one after the other, are the same as one discount of what percent? =
29. 29.The average of 7 numbers is 20. When one more number is added, the average becomes 21. What number was added?
30. 30.In how many years will ₹900 earn ₹180 as simple interest at 4% per year?
31. 31.The average of 9 numbers is 20. When one more number is added, the average becomes 23. What number was added?
32. 32.Find the amount when ₹8525 is invested at 20% per year compound interest for 2 years (in ₹).
33. 33.In how many years will ₹15100 earn ₹6342 as simple interest at 14% per year?
34. 34.A shop sells 620 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
35. 35.The price of a school bag changes from ₹4900 to ₹6125. By what percent did it go up?
36. 36.Diya’s father is five times as old as Diya. The sum of their ages is 42 years. How old is the father?
37. 37.The price of a bicycle is ₹2520. It goes up by 10%. What is the new price (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹3900 at 20% per year for 2 years (in ₹)?
39. 39.The price of a bicycle is ₹3760. It goes up by 10%. What is the new price (in ₹)?
40. 40.Kabir cycles to his school at 84 km/h and comes back by the same road at 12 km/h. What is his average speed for the whole trip (in km/h)?

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