Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 420 · 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 8 children is 33 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
2. 2.Kabir cycles to his school at 42 km/h and comes back by the same road at 21 km/h. What is his average speed for the whole trip (in km/h)?
3. 3.Diya puts ₹2400 in a bank at 10% simple interest per year. How much will she have after 5 years (in ₹)?
4. 4.A bicycle is marked at ₹2080. The shop gives a 20% discount. How much do you pay (in ₹)?
5. 5.The price of a school bag changes from ₹1860 to ₹1953. By what percent did it go up?
6. 6.By selling a school bag for ₹1558, a shopkeeper makes a loss of 5%. What did the school bag cost the shopkeeper (in ₹)?
7. 7.Change 15 m/s into km/h.
8. 8.The average of 7 numbers is 43. When one more number is added, the average becomes 46. What number was added?
9. 9.The simple interest on ₹8100 for 2 years is ₹1134. What is the rate of interest (% per year)?
10. 10.How many minutes does a car take to go 63 km at 35 km/h?
11. 11.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
12. 12.A water tank holds 2780 litres. 50% of the water is used. How many litres are left?
13. 13.A shopkeeper buys a study lamp for ₹1000 and sells it for ₹1100. Find the profit percent.
14. 14.The average of 4 numbers is 19. When one more number is added, the average becomes 23. What number was added?
15. 15.Arjun can finish a job in 9 days and Diya in 6 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
16. 16.Find the amount when ₹12800 is invested at 5% per year compound interest for 2 years (in ₹).
17. 17.Marks of 5 friends in a quiz: 81, 77, 95, 95, 72. What is their average mark?
18. 18.A table fan bought for ₹1700 is sold at a profit of 5%. What is the selling price (in ₹)?
19. 19.How many minutes does a car take to go 49 km at 30 km/h?
20. 20.Nisha works twice as fast as Dev. Together they finish a job in 12 days. How many days would Dev take alone?
21. 21.A shopkeeper buys a study lamp for ₹460 and sells it for ₹529. Find the profit percent.
22. 22.A price comes down by 15% and then comes down by 30% more. By what percent has it come down in all? =
23. 23.Pooja can finish a job in 4 days and Manav in 16 days. Pooja works alone for 2 days and then stops. Manav finishes the rest. How many days does Manav take?
24. 24.What sum of money earns ₹342 simple interest in 3 years at 2% per year (in ₹)?
25. 25.In 24 years, Meera will be twice as old as Meera was 3 years ago. How old is Meera now?
26. 26.A cricket bat is marked at ₹3720. The shop gives a 30% discount. How much do you pay (in ₹)?
27. 27.What sum of money earns ₹190 simple interest in 5 years at 2% per year (in ₹)?
28. 28.Find the compound interest on ₹27750 at 20% per year for 3 years, added every year (in ₹).
29. 29.In how many years will ₹2100 earn ₹378 as simple interest at 6% per year?
30. 30.The average of 6 numbers is 36. When one more number is added, the average becomes 42. What number was added?
31. 31.A shopkeeper buys a pair of shoes for ₹1640 and sells it for ₹984. Find the loss percent.
32. 32.Diya puts ₹3700 in a bank at 3% simple interest per year. How much will she have after 1 year (in ₹)?
33. 33.Find the amount when ₹33750 is invested at 4% per year compound interest for 2 years (in ₹).
34. 34.The average of 4 numbers is 29. When one more number is added, the average becomes 35. What number was added?
35. 35.Rohan and Kavya together finish a job in 21 days. Rohan alone takes 28 days. How many days would Kavya take alone?
36. 36.Farhan can finish a job in 17 days and Ananya in 14 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
37. 37.The price of a bicycle is ₹500. It goes up by 15%. What is the new price (in ₹)?
38. 38.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
39. 39.In how many years will ₹18000 earn ₹3240 as simple interest at 6% per year?
40. 40.Diya puts ₹1000 in a bank at 11% simple interest per year. How much will she have after 4 years (in ₹)?

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