Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 875 · 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 weight of 5 children is 40 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
2. 2.Aarav and Aditya together finish a job in 2 days. Aarav alone takes 4 days. How many days would Aditya take alone?
3. 3.Find the compound interest on ₹28300 at 10% per year for 2 years, added every year (in ₹).
4. 4.A water tank holds 3820 litres. 25% of the water is used. How many litres are left?
5. 5.A car runs for 1 hour at 49 km/h and then for 2 hours at 64 km/h. What is its average speed for the whole journey (in km/h)?
6. 6.A shopkeeper buys a study lamp for ₹1600 and sells it for ₹800. Find the loss percent.
7. 7.In how many years will ₹6500 earn ₹650 as simple interest at 2% per year?
8. 8.In 24 years, Pooja will be three times as old as Pooja was 2 years ago. How old is Pooja now?
9. 9.By selling a pair of shoes for ₹1804, a shopkeeper makes a profit of 10%. What did the pair of shoes cost the shopkeeper (in ₹)?
10. 10.The average weight of 8 children is 44 kg. One child, who weighs 58 kg, leaves the group. What is the new average weight (in kg)?
11. 11.A study lamp marked at ₹2000 is sold for ₹1400. What is the discount percent?
12. 12.A watch bought for ₹100 is sold at a profit of 40%. What is the selling price (in ₹)?
13. 13.Rohan and Ananya together finish a job in 3 days. Rohan alone takes 6 days. How many days would Ananya take alone?
14. 14.Arjun works three times as fast as Pooja. Together they finish a job in 5 days. How many days would Pooja take alone?
15. 15.How many minutes does a car take to go 95 km at 60 km/h?
16. 16.A water tank holds 3140 litres. 15% of the water is used. How many litres are left?
17. 17.4 years ago, Dev’s mother was four times as old as Dev. The mother is 24 years old now. How old is Dev now?
18. 18.Find the amount when ₹34000 is invested at 10% per year compound interest for 3 years (in ₹).
19. 19.How many minutes does a car take to go 49 km at 35 km/h?
20. 20.Diya puts ₹14000 in a bank at 15% simple interest per year. How much will she have after 4 years (in ₹)?
21. 21.Rohan’s batting average after 12 innings is 42 runs. How many runs must Rohan score in the next innings to raise the average to 45?
22. 22.The price of a school bag changes from ₹2800 to ₹1680. By what percent did it come down?
23. 23.By selling a study lamp for ₹598, a shopkeeper makes a profit of 30%. What did the study lamp cost the shopkeeper (in ₹)?
24. 24.A study lamp marked at ₹380 is sold for ₹323. What is the discount percent?
25. 25.A cricket bat is marked at ₹1500. The shop gives a 50% discount. How much do you pay (in ₹)?
26. 26.By selling a cricket bat for ₹855, a shopkeeper makes a loss of 25%. What did the cricket bat cost the shopkeeper (in ₹)?
27. 27.Sneha can finish a job in 5 days and Manav in 10 days. What fraction of the job do they finish if they work together for 3 days? =
28. 28.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
29. 29.A watch bought for ₹1540 is sold at a profit of 5%. What is the selling price (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
31. 31.Kabir’s father is twice as old as Kabir. The sum of their ages is 30 years. How old is Kabir?
32. 32.Marks of 6 friends in a quiz: 35, 49, 45, 26, 23, 26. What is their average mark?
33. 33.Kabir cycles to his school at 18 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
34. 34.A table fan is marked at ₹1120. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
35. 35.A watch marked at ₹2080 is sold for ₹1560. What is the discount percent?
36. 36.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
37. 37.Ishaan’s father is twice as old as Ishaan. The sum of their ages is 33 years. How old is the father?
38. 38.The simple interest on ₹5200 for 3 years is ₹936. What is the rate of interest (% per year)?
39. 39.Marks of 4 friends in a quiz: 23, 23, 42, 40. What is their average mark?
40. 40.In how many years will ₹500 earn ₹140 as simple interest at 14% per year?

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