Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 539 · 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 33 kg. One child, who weighs 41 kg, leaves the group. What is the new average weight (in kg)?
2. 2.The average of 9 numbers is 27. When one more number is added, the average becomes 33. What number was added?
3. 3.A study lamp marked at ₹2360 is sold for ₹1770. What is the discount percent?
4. 4.A pair of shoes marked at ₹3020 is sold for ₹1812. What is the discount percent?
5. 5.By selling a bicycle for ₹1925, a shopkeeper makes a profit of 25%. What did the bicycle cost the shopkeeper (in ₹)?
6. 6.The price of a bicycle is ₹4240. It goes up by 15%. What is the new price (in ₹)?
7. 7.Find the amount when ₹24000 is invested at 5% per year compound interest for 3 years (in ₹).
8. 8.Find the simple interest on ₹19700 at 2% per year for 1 year (in ₹).
9. 9.In how many years will ₹6900 earn ₹1242 as simple interest at 9% per year?
10. 10.A price comes down by 30% and then comes down by 10% more. By what percent has it come down in all? =
11. 11.Change 40 m/s into km/h.
12. 12.By selling a study lamp for ₹476, a shopkeeper makes a profit of 40%. What did the study lamp cost the shopkeeper (in ₹)?
13. 13.The price of a school bag changes from ₹200 to ₹190. By what percent did it come down?
14. 14.After a 30% discount, a watch costs ₹2478. What was its marked price (in ₹)?
15. 15.Find the compound interest on ₹15000 at 4% per year for 2 years, added every year (in ₹).
16. 16.Find the compound interest on ₹2800 at 10% per year for 2 years, added every year (in ₹).
17. 17.Aarav can finish a job in 18 days and Rahul in 20 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
18. 18.Rahul’s batting average after 9 innings is 27 runs. How many runs must Rahul score in the next innings to raise the average to 31?
19. 19.A watch is marked at ₹540. The shop takes 10% off, and then a further 50% off the new price. How much do you pay (in ₹)?
20. 20.In 22 years, Priya will be twice as old as Priya was 6 years ago. How old is Priya now?
21. 21.How many minutes does a car take to go 110 km at 75 km/h?
22. 22.A shopkeeper buys a school bag for ₹1960 and sells it for ₹2352. Find the profit percent.
23. 23.Pooja is 6 years older than Zoya. In 9 years, the sum of their ages will be 64. How old is Zoya now?
24. 24.The price of a school bag changes from ₹1840 to ₹1932. By what percent did it go up?
25. 25.A cricket bat is marked at ₹880. The shop gives a 30% discount. How much do you pay (in ₹)?
26. 26.Kavya can finish a job in 11 days and Zoya in 2 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
27. 27.A pair of shoes is marked at ₹2680. The shop gives a 40% discount. How much do you pay (in ₹)?
28. 28.By selling a pressure cooker for ₹1394, a shopkeeper makes a loss of 15%. What did the pressure cooker cost the shopkeeper (in ₹)?
29. 29.Find the amount when ₹1875 is invested at 8% per year compound interest for 2 years (in ₹).
30. 30.Rahul can finish a job in 9 days and Diya in 4 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
31. 31.Marks of 6 friends in a quiz: 52, 40, 33, 49, 27, 39. What is their average mark?
32. 32.A shopkeeper buys a pressure cooker for ₹2000 and sells it for ₹1200. Find the loss percent.
33. 33.Dev’s father is five times as old as Dev. The sum of their ages is 66 years. How old is Dev?
34. 34.A study lamp marked at ₹1720 is sold for ₹1634. What is the discount percent?
35. 35.A shop sells an average of 68 kg of sugar a day for 2 days, and then 30 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
36. 36.Change 36 km/h into metres per second.
37. 37.In 2 years, Saanvi will be three times as old as Saanvi was 6 years ago. How old is Saanvi now?
38. 38.In how many years will ₹11000 earn ₹220 as simple interest at 2% per year?
39. 39.Find the compound interest on ₹13775 at 20% per year for 2 years, added every year (in ₹).
40. 40.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =

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