Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 366 · 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 40. When one more number is added, the average becomes 41. What number was added?
2. 2.A shop sells an average of 64 kg of sugar a day for 2 days, and then 43 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
3. 3.Find the simple interest on ₹13300 at 4% per year for 2 years (in ₹).
4. 4.A car runs for 3 hours at 38 km/h and then for 4 hours at 59 km/h. What is its average speed for the whole journey (in km/h)?
5. 5.A bicycle is marked at ₹1050. The shop takes 10% off, and then a further 20% off the new price. How much do you pay (in ₹)?
6. 6.The average weight of 12 children is 43 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
7. 7.The price of a school bag changes from ₹2020 to ₹1414. By what percent did it come down?
8. 8.Two discounts of 10% and 20%, one after the other, are the same as one discount of what percent? =
9. 9.A car runs for 3 hours at 66 km/h and then for 3 hours at 70 km/h. What is its average speed for the whole journey (in km/h)?
10. 10.Find the simple interest on ₹18100 at 6% per year for 4 years (in ₹).
11. 11.Rahul’s father is five times as old as Rahul. The sum of their ages is 78 years. How old is Rahul?
12. 12.Aditya works three times as fast as Vivaan. Together they finish a job in 2 days. How many days would Vivaan take alone?
13. 13.Manav can finish a job in 18 days and Dev in 27 days. Manav works alone for 8 days and then stops. Dev finishes the rest. How many days does Dev take?
14. 14.The simple interest on ₹18100 for 3 years is ₹7602. What is the rate of interest (% per year)?
15. 15.The simple interest on ₹3000 for 4 years is ₹1680. What is the rate of interest (% per year)?
16. 16.The price of a bicycle is ₹660. It goes up by 40%. What is the new price (in ₹)?
17. 17.How many minutes does a car take to go 133 km at 38 km/h?
18. 18.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
19. 19.Karan is 4 years older than Isha. In 9 years, the sum of their ages will be 34. How old is Isha now?
20. 20.A water tank holds 720 litres. 20% of the water is used. How many litres are left?
21. 21.A shopkeeper buys a watch for ₹780 and sells it for ₹546. Find the loss percent.
22. 22.By selling a pair of shoes for ₹748, a shopkeeper makes a profit of 10%. What did the pair of shoes cost the shopkeeper (in ₹)?
23. 23.The simple interest on ₹6700 for 2 years is ₹536. What is the rate of interest (% per year)?
24. 24.A shopkeeper buys a study lamp for ₹1540 and sells it for ₹1078. Find the loss percent.
25. 25.Find the amount when ₹8400 is invested at 10% per year compound interest for 2 years (in ₹).
26. 26.Marks of 5 friends in a quiz: 57, 33, 36, 58, 46. What is their average mark?
27. 27.7 years ago, Rahul’s mother was twice as old as Rahul. The mother is 19 years old now. How old is Rahul now?
28. 28.Two discounts of 10% and 25%, one after the other, are the same as one discount of what percent? =
29. 29.Diya puts ₹12300 in a bank at 2% simple interest per year. How much will she have after 2 years (in ₹)?
30. 30.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
31. 31.Karan’s batting average after 5 innings is 48 runs. How many runs must Karan score in the next innings to raise the average to 51?
32. 32.Dev and Saanvi together finish a job in 2 days. Dev alone takes 3 days. How many days would Saanvi take alone?
33. 33.A shopkeeper buys a bicycle for ₹1000 and sells it for ₹700. Find the loss percent.
34. 34.A water tank holds 3060 litres. 10% of the water is used. How many litres are left?
35. 35.Change 36 km/h into metres per second.
36. 36.After a 50% discount, a bicycle costs ₹1880. What was its marked price (in ₹)?
37. 37.A school bag marked at ₹2920 is sold for ₹2336. What is the discount percent?
38. 38.Meera is 7 years older than Dev. In 7 years, the sum of their ages will be 73. How old is Dev now?
39. 39.The average of 8 numbers is 48. When one more number is added, the average becomes 49. What number was added?
40. 40.Find the compound interest on ₹31250 at 12% per year for 3 years, added every year (in ₹).

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