Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 188 · 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 town has 4000 people. Its population grows by 40%. How many people live there now?
2. 2.Farhan works twice as fast as Diya. Together they finish a job in 3 days. How many days would Diya take alone?
3. 3.A watch is marked at ₹592. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
4. 4.The price of a bicycle is ₹4340. It goes up by 25%. What is the new price (in ₹)?
5. 5.By selling a pair of shoes for ₹854, a shopkeeper makes a loss of 30%. What did the pair of shoes cost the shopkeeper (in ₹)?
6. 6.Change 36 km/h into metres per second.
7. 7.What is the difference between the compound interest and the simple interest on ₹3300 at 10% per year for 2 years (in ₹)?
8. 8.A table fan is marked at ₹880. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
9. 9.Nisha’s batting average after 12 innings is 26 runs. How many runs must Nisha score in the next innings to raise the average to 31?
10. 10.In 19 years, Karan will be twice as old as Karan was 2 years ago. How old is Karan now?
11. 11.What sum of money earns ₹1512 simple interest in 4 years at 2% per year (in ₹)?
12. 12.The average weight of 10 children is 40 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
13. 13.The average of 9 numbers is 25. When one more number is added, the average becomes 28. What number was added?
14. 14.Marks of 5 friends in a quiz: 63, 37, 61, 47, 47. What is their average mark?
15. 15.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
16. 16.The average of 8 numbers is 35. When one more number is added, the average becomes 40. What number was added?
17. 17.A price goes up by 40% and then goes up by 25% more. By what percent has it gone up in all? =
18. 18.The price of a school bag changes from ₹540 to ₹810. By what percent did it go up?
19. 19.In 23 years, Arjun will be twice as old as Arjun was 6 years ago. How old is Arjun now?
20. 20.A water tank holds 3740 litres. 5% of the water is used. How many litres are left?
21. 21.How many minutes does a car take to go 16 km at 64 km/h?
22. 22.In how many years will ₹14100 earn ₹4230 as simple interest at 10% per year?
23. 23.A study lamp is marked at ₹1200. The shop gives a 25% discount. How much do you pay (in ₹)?
24. 24.3 years ago, Kabir’s mother was four times as old as Kabir. The mother is 43 years old now. How old is Kabir now?
25. 25.Priya’s father is three times as old as Priya. The sum of their ages is 36 years. How old is the father?
26. 26.Manav and Zoya together finish a job in 12 days. Manav alone takes 24 days. How many days would Zoya take alone?
27. 27.A car runs for 1 hour at 45 km/h and then for 1 hour at 21 km/h. What is its average speed for the whole journey (in km/h)?
28. 28.What sum of money earns ₹2265 simple interest in 5 years at 3% per year (in ₹)?
29. 29.Marks of 6 friends in a quiz: 48, 51, 73, 45, 58, 73. What is their average mark?
30. 30.A pair of shoes is marked at ₹1200. The shop takes 10% off, and then a further 50% off the new price. How much do you pay (in ₹)?
31. 31.Find the amount when ₹8000 is invested at 15% per year compound interest for 2 years (in ₹).
32. 32.A price goes up by 30% and then goes up by 30% more. By what percent has it gone up in all? =
33. 33.What sum of money earns ₹1932 simple interest in 3 years at 14% per year (in ₹)?
34. 34.The average weight of 10 children is 36 kg. One child, who weighs 63 kg, leaves the group. What is the new average weight (in kg)?
35. 35.Kavya works twice as fast as Ananya. Together they finish a job in 10 days. How many days would Ananya take alone?
36. 36.In how many years will ₹18200 earn ₹728 as simple interest at 2% per year?
37. 37.Change 72 km/h into metres per second.
38. 38.9 years ago, Manav’s mother was three times as old as Manav. The mother is 33 years old now. How old is Manav now?
39. 39.Change 5 m/s into km/h.
40. 40.A table fan is marked at ₹2160. The shop gives a 40% discount. How much do you pay (in ₹)?

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