Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 240 · 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.Ananya’s batting average after 10 innings is 40 runs. How many runs must Ananya score in the next innings to raise the average to 44?
2. 2.Find the amount when ₹21250 is invested at 12% per year compound interest for 2 years (in ₹).
3. 3.A water tank holds 3100 litres. 15% of the water is used. How many litres are left?
4. 4.Aarav can finish a job in 10 days and Manav in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
5. 5.By selling a watch for ₹1360, a shopkeeper makes a loss of 20%. What did the watch cost the shopkeeper (in ₹)?
6. 6.A shopkeeper buys a pair of shoes for ₹1440 and sells it for ₹1368. Find the loss percent.
7. 7.Arjun can finish a job in 6 days and Rohan in 8 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
8. 8.A car runs for 4 hours at 33 km/h and then for 2 hours at 48 km/h. What is its average speed for the whole journey (in km/h)?
9. 9.Two discounts of 10% and 20%, one after the other, are the same as one discount of what percent? =
10. 10.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
11. 11.A school bag is marked at ₹560. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
12. 12.After a 50% discount, a bicycle costs ₹2120. What was its marked price (in ₹)?
13. 13.In how many years will ₹15400 earn ₹9240 as simple interest at 12% per year?
14. 14.Find the compound interest on ₹47600 at 5% per year for 2 years, added every year (in ₹).
15. 15.What sum of money earns ₹760 simple interest in 4 years at 5% per year (in ₹)?
16. 16.Saanvi and Kabir together finish a job in 3 days. Saanvi alone takes 6 days. How many days would Kabir take alone?
17. 17.Find the compound interest on ₹45696 at 25% per year for 3 years, added every year (in ₹).
18. 18.Change 20 m/s into km/h.
19. 19.Two discounts of 20% and 25%, one after the other, are the same as one discount of what percent? =
20. 20.How many minutes does a car take to go 133 km at 76 km/h?
21. 21.A price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
22. 22.How many minutes does a car take to go 26 km at 39 km/h?
23. 23.Aarav works three times as fast as Priya. Together they finish a job in 6 days. How many days would Priya take alone?
24. 24.A price comes down by 30% and then comes down by 50% more. By what percent has it come down in all? =
25. 25.A shop sells an average of 47 kg of sugar a day for 3 days, and then 71 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
26. 26.In how many years will ₹5700 earn ₹1197 as simple interest at 7% per year?
27. 27.Manav can finish a job in 2 days and Rahul in 12 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
28. 28.Two discounts of 50% and 20%, one after the other, are the same as one discount of what percent? =
29. 29.After a 20% discount, a watch costs ₹800. What was its marked price (in ₹)?
30. 30.A pair of shoes is marked at ₹445. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
31. 31.A shop sells 80 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
32. 32.The average weight of 6 children is 40 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
33. 33.A pressure cooker is marked at ₹1560. The shop takes 25% off, and then a further 10% off the new price. How much do you pay (in ₹)?
34. 34.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
35. 35.The price of a bicycle is ₹660. It goes up by 50%. What is the new price (in ₹)?
36. 36.A study lamp marked at ₹1080 is sold for ₹918. What is the discount percent?
37. 37.Find the amount when ₹19264 is invested at 25% per year compound interest for 3 years (in ₹).
38. 38.The simple interest on ₹1300 for 5 years is ₹195. What is the rate of interest (% per year)?
39. 39.Find the compound interest on ₹15625 at 12% per year for 3 years, added every year (in ₹).
40. 40.The average of 4 numbers is 22. When one more number is added, the average becomes 26. What number was added?

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