Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 617 · 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 car runs for 1 hour at 38 km/h and then for 3 hours at 30 km/h. What is its average speed for the whole journey (in km/h)?
2. 2.Find the amount when ₹31250 is invested at 8% per year compound interest for 3 years (in ₹).
3. 3.The average of 9 numbers is 31. When one more number is added, the average becomes 37. What number was added?
4. 4.A pressure cooker bought for ₹440 is sold at a loss of 40%. What is the selling price (in ₹)?
5. 5.Two discounts of 50% and 10%, one after the other, are the same as one discount of what percent? =
6. 6.In how many years will ₹11100 earn ₹1332 as simple interest at 3% per year?
7. 7.In how many years will ₹9200 earn ₹828 as simple interest at 3% per year?
8. 8.Tara and Isha together finish a job in 12 days. Tara alone takes 15 days. How many days would Isha take alone?
9. 9.A cricket bat marked at ₹1940 is sold for ₹1649. What is the discount percent?
10. 10.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
11. 11.10 years ago, Vivaan’s mother was four times as old as Vivaan. The mother is 50 years old now. How old is Vivaan now?
12. 12.A shopkeeper buys a bicycle for ₹1040 and sells it for ₹1300. Find the profit percent.
13. 13.A watch is marked at ₹540. The shop takes 50% off, and then a further 20% off the new price. How much do you pay (in ₹)?
14. 14.By selling a school bag for ₹1034, a shopkeeper makes a profit of 10%. What did the school bag cost the shopkeeper (in ₹)?
15. 15.A cricket bat is marked at ₹540. The shop gives a 20% discount. How much do you pay (in ₹)?
16. 16.Diya puts ₹14500 in a bank at 12% simple interest per year. How much will she have after 4 years (in ₹)?
17. 17.The average weight of 9 children is 37 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
18. 18.In 16 years, Farhan will be twice as old as Farhan was 4 years ago. How old is Farhan now?
19. 19.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
20. 20.Karan and Tara together finish a job in 6 days. Karan alone takes 8 days. How many days would Tara take alone?
21. 21.The price of a school bag changes from ₹1280 to ₹1216. By what percent did it come down?
22. 22.A bicycle is marked at ₹1920. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
23. 23.Zoya and Karan together finish a job in 9 days. Zoya alone takes 10 days. How many days would Karan take alone?
24. 24.Marks of 4 friends in a quiz: 70, 67, 57, 30. What is their average mark?
25. 25.Zoya can finish a job in 5 days and Meera in 25 days. Zoya works alone for 1 day and then stops. Meera finishes the rest. How many days does Meera take?
26. 26.Find the compound interest on ₹42500 at 10% per year for 2 years, added every year (in ₹).
27. 27.A pressure cooker bought for ₹660 is sold at a loss of 25%. What is the selling price (in ₹)?
28. 28.After a 50% discount, a table fan costs ₹930. What was its marked price (in ₹)?
29. 29.Manav can finish a job in 16 days and Farhan in 6 days. What fraction of the job do they finish if they work together for 1 day? =
30. 30.Meera’s father is five times as old as Meera. The sum of their ages is 60 years. How old is Meera?
31. 31.A study lamp bought for ₹1520 is sold at a loss of 50%. What is the selling price (in ₹)?
32. 32.A price goes up by 50% and then goes up by 20% more. By what percent has it gone up in all? =
33. 33.The price of a school bag changes from ₹1260 to ₹1449. By what percent did it go up?
34. 34.Rahul works twice as fast as Meera. Together they finish a job in 3 days. How many days would Meera take alone?
35. 35.By selling a watch for ₹66, a shopkeeper makes a profit of 10%. What did the watch cost the shopkeeper (in ₹)?
36. 36.A water tank holds 2360 litres. 15% of the water is used. How many litres are left?
37. 37.Rahul’s batting average after 10 innings is 47 runs. How many runs must Rahul score in the next innings to raise the average to 52?
38. 38.How many minutes does a car take to go 110 km at 44 km/h?
39. 39.Karan’s batting average after 13 innings is 21 runs. How many runs must Karan score in the next innings to raise the average to 23?
40. 40.Marks of 4 friends in a quiz: 92, 70, 92, 54. What is their average mark?

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