Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 18 · 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.By selling a study lamp for ₹324, a shopkeeper makes a loss of 10%. What did the study lamp cost the shopkeeper (in ₹)?
2. 2.A price goes up by 20% and then goes up by 30% more. By what percent has it gone up in all? =
3. 3.A shopkeeper buys a study lamp for ₹880 and sells it for ₹1100. Find the profit percent.
4. 4.By selling a table fan for ₹1638, a shopkeeper makes a profit of 5%. What did the table fan cost the shopkeeper (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹41300 at 10% per year for 2 years (in ₹)?
6. 6.The price of a school bag changes from ₹4300 to ₹6450. By what percent did it go up?
7. 7.In how many years will ₹4600 earn ₹1932 as simple interest at 14% per year?
8. 8.Dev works three times as fast as Aarav. Together they finish a job in 10 days. How many days would Aarav take alone?
9. 9.A price goes up by 25% and then goes up by 15% more. By what percent has it gone up in all? =
10. 10.A table fan marked at ₹320 is sold for ₹256. What is the discount percent?
11. 11.Aditya’s father is twice as old as Aditya. The sum of their ages is 21 years. How old is Aditya?
12. 12.Arjun and Ananya together finish a job in 4 days. Arjun alone takes 5 days. How many days would Ananya take alone?
13. 13.Find the simple interest on ₹1000 at 8% per year for 1 year (in ₹).
14. 14.By selling a study lamp for ₹816, a shopkeeper makes a loss of 40%. What did the study lamp cost the shopkeeper (in ₹)?
15. 15.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
16. 16.Kabir cycles to his school at 72 km/h and comes back by the same road at 24 km/h. What is his average speed for the whole trip (in km/h)?
17. 17.What sum of money earns ₹4704 simple interest in 3 years at 14% per year (in ₹)?
18. 18.Marks of 5 friends in a quiz: 11, 26, 31, 24, 13. What is their average mark?
19. 19.Find the amount when ₹40000 is invested at 15% per year compound interest for 3 years (in ₹).
20. 20.Find the amount when ₹19375 is invested at 12% per year compound interest for 2 years (in ₹).
21. 21.Change 18 km/h into metres per second.
22. 22.Aarav can finish a job in 8 days and Pooja in 5 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
23. 23.Tara’s batting average after 14 innings is 20 runs. How many runs must Tara score in the next innings to raise the average to 25?
24. 24.A bicycle bought for ₹1260 is sold at a profit of 30%. What is the selling price (in ₹)?
25. 25.The average of 9 numbers is 25. When one more number is added, the average becomes 29. What number was added?
26. 26.Nisha can finish a job in 4 days and Ananya in 12 days. Nisha works alone for 3 days and then stops. Ananya finishes the rest. How many days does Ananya take?
27. 27.A water tank holds 1080 litres. 30% of the water is used. How many litres are left?
28. 28.A bus runs at 27 km/h. How far does it go in 40 minutes (in km)?
29. 29.Find the simple interest on ₹10200 at 5% per year for 5 years (in ₹).
30. 30.Diya puts ₹1000 in a bank at 12% simple interest per year. How much will she have after 2 years (in ₹)?
31. 31.A table fan marked at ₹3960 is sold for ₹1980. What is the discount percent?
32. 32.By selling a bicycle for ₹1134, a shopkeeper makes a loss of 30%. What did the bicycle cost the shopkeeper (in ₹)?
33. 33.Marks of 4 friends in a quiz: 53, 53, 50, 16. What is their average mark?
34. 34.Change 36 km/h into metres per second.
35. 35.Rahul and Isha together finish a job in 2 days. Rahul alone takes 4 days. How many days would Isha take alone?
36. 36.The average weight of 11 children is 38 kg. One child, who weighs 68 kg, leaves the group. What is the new average weight (in kg)?
37. 37.Dev’s batting average after 6 innings is 22 runs. How many runs must Dev score in the next innings to raise the average to 26?
38. 38.A pressure cooker is marked at ₹4660. The shop gives a 30% discount. How much do you pay (in ₹)?
39. 39.The simple interest on ₹14400 for 2 years is ₹4032. What is the rate of interest (% per year)?
40. 40.Change 5 m/s into km/h.

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