Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 227 · 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.After a 10% discount, a pair of shoes costs ₹3510. What was its marked price (in ₹)?
2. 2.Two discounts of 25% and 20%, one after the other, are the same as one discount of what percent? =
3. 3.By selling a bicycle for ₹1056, a shopkeeper makes a profit of 20%. What did the bicycle cost the shopkeeper (in ₹)?
4. 4.The average of 6 numbers is 38. When one more number is added, the average becomes 41. What number was added?
5. 5.The average weight of 11 children is 34 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
6. 6.Kabir cycles to his school at 14 km/h and comes back by the same road at 35 km/h. What is his average speed for the whole trip (in km/h)?
7. 7.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
8. 8.By selling a study lamp for ₹1534, a shopkeeper makes a profit of 30%. What did the study lamp cost the shopkeeper (in ₹)?
9. 9.Change 90 km/h into metres per second.
10. 10.The average weight of 7 children is 43 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
11. 11.What sum of money earns ₹1464 simple interest in 3 years at 8% per year (in ₹)?
12. 12.Aditya is 3 years older than Manav. In 7 years, the sum of their ages will be 69. How old is Manav now?
13. 13.The price of a school bag changes from ₹2480 to ₹1488. By what percent did it come down?
14. 14.Change 40 m/s into km/h.
15. 15.A bus runs at 21 km/h. How far does it go in 40 minutes (in km)?
16. 16.A table fan marked at ₹180 is sold for ₹153. What is the discount percent?
17. 17.The simple interest on ₹2900 for 1 year is ₹58. What is the rate of interest (% per year)?
18. 18.A shop sells an average of 61 kg of sugar a day for 2 days, and then 31 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
19. 19.What is the difference between the compound interest and the simple interest on ₹12400 at 15% per year for 2 years (in ₹)?
20. 20.Find the amount when ₹6704 is invested at 25% per year compound interest for 2 years (in ₹).
21. 21.Diya puts ₹14300 in a bank at 2% simple interest per year. How much will she have after 4 years (in ₹)?
22. 22.The price of a school bag changes from ₹2640 to ₹3696. By what percent did it go up?
23. 23.Marks of 5 friends in a quiz: 25, 16, 21, 35, 58. What is their average mark?
24. 24.A shopkeeper buys a pair of shoes for ₹1060 and sells it for ₹795. Find the loss percent.
25. 25.Tara’s father is twice as old as Tara. The sum of their ages is 45 years. How old is the father?
26. 26.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
27. 27.Find the amount when ₹20875 is invested at 20% per year compound interest for 3 years (in ₹).
28. 28.What sum of money earns ₹1464 simple interest in 4 years at 3% per year (in ₹)?
29. 29.A water tank holds 280 litres. 40% of the water is used. How many litres are left?
30. 30.Arjun can finish a job in 27 days and Rahul in 9 days. Arjun works alone for 21 days and then stops. Rahul finishes the rest. How many days does Rahul take?
31. 31.Find the amount when ₹26300 is invested at 10% per year compound interest for 2 years (in ₹).
32. 32.A watch is marked at ₹1140. The shop takes 50% off, and then a further 10% off the new price. How much do you pay (in ₹)?
33. 33.Two discounts of 20% and 50%, one after the other, are the same as one discount of what percent? =
34. 34.Marks of 4 friends in a quiz: 62, 65, 39, 46. What is their average mark?
35. 35.A car runs for 3 hours at 77 km/h and then for 2 hours at 27 km/h. What is its average speed for the whole journey (in km/h)?
36. 36.Kabir can finish a job in 5 days and Sneha in 15 days. What fraction of the job do they finish if they work together for 1 day? =
37. 37.8 years ago, Pooja’s mother was twice as old as Pooja. The mother is 20 years old now. How old is Pooja now?
38. 38.Find the amount when ₹1875 is invested at 8% per year compound interest for 2 years (in ₹).
39. 39.Change 36 km/h into metres per second.
40. 40.The average of 7 numbers is 28. When one more number is added, the average becomes 32. What number was added?

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