Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 251 · 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.Two discounts of 25% and 10%, one after the other, are the same as one discount of what percent? =
2. 2.A water tank holds 2700 litres. 10% of the water is used. How many litres are left?
3. 3.A shop sells an average of 42 kg of sugar a day for 2 days, and then 77 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
4. 4.In how many years will ₹19300 earn ₹8685 as simple interest at 9% per year?
5. 5.The average weight of 8 children is 43 kg. One child, who weighs 64 kg, leaves the group. What is the new average weight (in kg)?
6. 6.A cricket bat bought for ₹700 is sold at a profit of 40%. What is the selling price (in ₹)?
7. 7.Find the compound interest on ₹33984 at 25% per year for 2 years, added every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹12400 at 10% per year for 2 years (in ₹)?
9. 9.By selling a pair of shoes for ₹740, a shopkeeper makes a loss of 50%. What did the pair of shoes cost the shopkeeper (in ₹)?
10. 10.Ishaan is 10 years older than Diya. In 4 years, the sum of their ages will be 50. How old is Diya now?
11. 11.Aditya works three times as fast as Ananya. Together they finish a job in 11 days. How many days would Ananya take alone?
12. 12.In how many years will ₹2000 earn ₹140 as simple interest at 7% per year?
13. 13.A school bag bought for ₹880 is sold at a profit of 5%. What is the selling price (in ₹)?
14. 14.By selling a watch for ₹171, a shopkeeper makes a loss of 5%. What did the watch cost the shopkeeper (in ₹)?
15. 15.A cricket bat is marked at ₹4880. The shop gives a 10% discount. How much do you pay (in ₹)?
16. 16.Find the amount when ₹24000 is invested at 5% per year compound interest for 3 years (in ₹).
17. 17.Find the amount when ₹33000 is invested at 10% per year compound interest for 3 years (in ₹).
18. 18.Rohan’s father is twice as old as Rohan. The sum of their ages is 39 years. How old is the father?
19. 19.By selling a pair of shoes for ₹506, a shopkeeper makes a profit of 10%. What did the pair of shoes cost the shopkeeper (in ₹)?
20. 20.Diya puts ₹9400 in a bank at 12% simple interest per year. How much will she have after 3 years (in ₹)?
21. 21.A school bag is marked at ₹464. The shop takes 50% off, and then a further 25% off the new price. How much do you pay (in ₹)?
22. 22.Change 10 m/s into km/h.
23. 23.The simple interest on ₹10300 for 3 years is ₹1854. What is the rate of interest (% per year)?
24. 24.A shop sells 1580 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
25. 25.A price goes up by 40% and then comes down by 25%. By what percent has it gone up in all? =
26. 26.Find the simple interest on ₹6800 at 3% per year for 3 years (in ₹).
27. 27.A water tank holds 3400 litres. 50% of the water is used. How many litres are left?
28. 28.The price of a bicycle is ₹2920. It goes up by 15%. What is the new price (in ₹)?
29. 29.A price goes up by 30% and then goes up by 30% more. By what percent has it gone up in all? =
30. 30.A water tank holds 760 litres. 40% of the water is used. How many litres are left?
31. 31.Find the simple interest on ₹19400 at 10% per year for 3 years (in ₹).
32. 32.A shopkeeper buys a watch for ₹620 and sells it for ₹744. Find the profit percent.
33. 33.A pressure cooker marked at ₹1060 is sold for ₹795. What is the discount percent?
34. 34.Dev can finish a job in 19 days and Ishaan in 7 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
35. 35.A shopkeeper buys a bicycle for ₹740 and sells it for ₹925. Find the profit percent.
36. 36.Find the compound interest on ₹22304 at 25% per year for 2 years, added every year (in ₹).
37. 37.Change 25 m/s into km/h.
38. 38.Change 5 m/s into km/h.
39. 39.A town has 2720 people. Its population grows by 25%. How many people live there now?
40. 40.Diya puts ₹17900 in a bank at 14% simple interest per year. How much will she have after 3 years (in ₹)?

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