Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 325 · 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 water tank holds 700 litres. 15% of the water is used. How many litres are left?
2. 2.Find the amount when ₹31250 is invested at 12% per year compound interest for 3 years (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹41600 at 15% per year for 2 years (in ₹)?
4. 4.A shopkeeper buys a watch for ₹2000 and sells it for ₹1000. Find the loss percent.
5. 5.Tara’s batting average after 13 innings is 45 runs. How many runs must Tara score in the next innings to raise the average to 46?
6. 6.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
7. 7.Change 90 km/h into metres per second.
8. 8.A bicycle is marked at ₹1080. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
9. 9.Kavya’s batting average after 6 innings is 34 runs. How many runs must Kavya score in the next innings to raise the average to 39?
10. 10.A shopkeeper buys a table fan for ₹1420 and sells it for ₹1065. Find the loss percent.
11. 11.Ananya and Rahul together finish a job in 2 days. Ananya alone takes 4 days. How many days would Rahul take alone?
12. 12.3 years ago, Rohan’s mother was twice as old as Rohan. The mother is 17 years old now. How old is Rohan now?
13. 13.By selling a bicycle for ₹672, a shopkeeper makes a loss of 40%. What did the bicycle cost the shopkeeper (in ₹)?
14. 14.A table fan is marked at ₹4500. The shop gives a 40% discount. How much do you pay (in ₹)?
15. 15.In how many years will ₹17200 earn ₹4816 as simple interest at 7% per year?
16. 16.Find the compound interest on ₹16000 at 10% per year for 3 years, added every year (in ₹).
17. 17.Tara can finish a job in 3 days and Meera in 7 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
18. 18.In how many years will ₹17400 earn ₹7656 as simple interest at 11% per year?
19. 19.A watch marked at ₹3700 is sold for ₹3515. What is the discount percent?
20. 20.Find the simple interest on ₹10200 at 5% per year for 1 year (in ₹).
21. 21.By selling a table fan for ₹616, a shopkeeper makes a profit of 10%. What did the table fan cost the shopkeeper (in ₹)?
22. 22.Find the simple interest on ₹4400 at 4% per year for 5 years (in ₹).
23. 23.By selling a school bag for ₹1300, a shopkeeper makes a profit of 30%. What did the school bag cost the shopkeeper (in ₹)?
24. 24.A bus runs at 30 km/h. How far does it go in 40 minutes (in km)?
25. 25.6 years ago, Isha’s mother was twice as old as Isha. The mother is 18 years old now. How old is Isha now?
26. 26.What sum of money earns ₹2100 simple interest in 4 years at 5% per year (in ₹)?
27. 27.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
28. 28.What sum of money earns ₹416 simple interest in 2 years at 2% per year (in ₹)?
29. 29.Aarav’s father is three times as old as Aarav. The sum of their ages is 48 years. How old is the father?
30. 30.The average of 6 numbers is 38. When one more number is added, the average becomes 39. What number was added?
31. 31.The average of 5 numbers is 50. When one more number is added, the average becomes 55. What number was added?
32. 32.What sum of money earns ₹1127 simple interest in 1 year at 7% per year (in ₹)?
33. 33.A shopkeeper buys a bicycle for ₹1480 and sells it for ₹1332. Find the loss percent.
34. 34.After a 25% discount, a cricket bat costs ₹2295. What was its marked price (in ₹)?
35. 35.The average weight of 8 children is 46 kg. One child, who weighs 53 kg, leaves the group. What is the new average weight (in kg)?
36. 36.Aarav can finish a job in 10 days and Isha in 5 days. Aarav works alone for 4 days and then stops. Isha finishes the rest. How many days does Isha take?
37. 37.Rahul and Tara together finish a job in 2 days. Rahul alone takes 3 days. How many days would Tara take alone?
38. 38.A pressure cooker is marked at ₹1820. The shop gives a 5% discount. How much do you pay (in ₹)?
39. 39.Kabir can finish a job in 4 days and Sneha in 18 days. What fraction of the job do they finish if they work together for 3 days? =
40. 40.Find the amount when ₹25625 is invested at 12% per year compound interest for 2 years (in ₹).

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