Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 878 · 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 weight of 12 children is 46 kg. One child, who weighs 68 kg, leaves the group. What is the new average weight (in kg)?
2. 2.Find the amount when ₹29760 is invested at 25% per year compound interest for 2 years (in ₹).
3. 3.Marks of 4 friends in a quiz: 89, 89, 77, 57. What is their average mark?
4. 4.By selling a school bag for ₹1804, a shopkeeper makes a profit of 10%. What did the school bag cost the shopkeeper (in ₹)?
5. 5.In 29 years, Rohan will be twice as old as Rohan was 5 years ago. How old is Rohan now?
6. 6.Kabir cycles to his school at 70 km/h and comes back by the same road at 28 km/h. What is his average speed for the whole trip (in km/h)?
7. 7.A shopkeeper buys a cricket bat for ₹1700 and sells it for ₹2210. Find the profit percent.
8. 8.In 13 years, Diya will be three times as old as Diya was 5 years ago. How old is Diya now?
9. 9.The average of 7 numbers is 33. When one more number is added, the average becomes 35. What number was added?
10. 10.A water tank holds 1600 litres. 20% of the water is used. How many litres are left?
11. 11.Manav’s father is five times as old as Manav. The sum of their ages is 48 years. How old is the father?
12. 12.A price goes up by 50% and then goes up by 5% more. By what percent has it gone up in all? =
13. 13.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
14. 14.In 11 years, Pooja will be three times as old as Pooja was 5 years ago. How old is Pooja now?
15. 15.A school bag is marked at ₹632. The shop takes 25% off, and then a further 50% off the new price. How much do you pay (in ₹)?
16. 16.A watch bought for ₹580 is sold at a loss of 15%. What is the selling price (in ₹)?
17. 17.In 14 years, Priya will be three times as old as Priya was 4 years ago. How old is Priya now?
18. 18.In how many years will ₹17800 earn ₹7120 as simple interest at 8% per year?
19. 19.How many minutes does a car take to go 105 km at 35 km/h?
20. 20.Rohan’s father is four times as old as Rohan. The sum of their ages is 40 years. How old is Rohan?
21. 21.By selling a pressure cooker for ₹1298, a shopkeeper makes a profit of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
22. 22.Change 18 km/h into metres per second.
23. 23.Tara can finish a job in 12 days and Arjun in 14 days. What fraction of the job do they finish if they work together for 2 days? =
24. 24.Vivaan is 5 years older than Rahul. In 6 years, the sum of their ages will be 51. How old is Rahul now?
25. 25.A water tank holds 3340 litres. 20% of the water is used. How many litres are left?
26. 26.Kabir cycles to his school at 18 km/h and comes back by the same road at 63 km/h. What is his average speed for the whole trip (in km/h)?
27. 27.What sum of money earns ₹204 simple interest in 1 year at 2% per year (in ₹)?
28. 28.Pooja is 6 years older than Dev. In 5 years, the sum of their ages will be 54. How old is Dev now?
29. 29.Ishaan can finish a job in 18 days and Aditya in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
30. 30.A pair of shoes is marked at ₹780. The shop gives a 40% discount. How much do you pay (in ₹)?
31. 31.6 years ago, Aditya’s mother was three times as old as Aditya. The mother is 27 years old now. How old is Aditya now?
32. 32.Manav’s father is four times as old as Manav. The sum of their ages is 45 years. How old is the father?
33. 33.Diya’s father is four times as old as Diya. The sum of their ages is 30 years. How old is the father?
34. 34.The price of a school bag changes from ₹1460 to ₹1898. By what percent did it go up?
35. 35.The average weight of 5 children is 41 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
36. 36.Two discounts of 50% and 25%, one after the other, are the same as one discount of what percent? =
37. 37.The price of a school bag changes from ₹1120 to ₹672. By what percent did it come down?
38. 38.In 6 years, Nisha will be three times as old as Nisha was 4 years ago. How old is Nisha now?
39. 39.Find the amount when ₹38400 is invested at 25% per year compound interest for 3 years (in ₹).
40. 40.Find the compound interest on ₹31250 at 4% per year for 3 years, added every year (in ₹).

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