Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 55 · 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.By selling a watch for ₹2340, a shopkeeper makes a profit of 50%. What did the watch cost the shopkeeper (in ₹)?
2. 2.The simple interest on ₹2300 for 1 year is ₹161. What is the rate of interest (% per year)?
3. 3.What is the difference between the compound interest and the simple interest on ₹5700 at 20% per year for 2 years (in ₹)?
4. 4.Aarav’s batting average after 12 innings is 35 runs. How many runs must Aarav score in the next innings to raise the average to 36?
5. 5.A water tank holds 500 litres. 20% of the water is used. How many litres are left?
6. 6.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
7. 7.A table fan is marked at ₹1280. The shop gives a 25% discount. How much do you pay (in ₹)?
8. 8.Tara can finish a job in 5 days and Kabir in 25 days. Tara works alone for 1 day and then stops. Kabir finishes the rest. How many days does Kabir take?
9. 9.Find the amount when ₹8000 is invested at 5% per year compound interest for 3 years (in ₹).
10. 10.By selling a pressure cooker for ₹990, a shopkeeper makes a profit of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
11. 11.A price goes up by 10% and then goes up by 25% more. By what percent has it gone up in all? =
12. 12.A price goes up by 25% and then goes up by 5% more. By what percent has it gone up in all? =
13. 13.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
14. 14.A bicycle is marked at ₹3000. The shop gives a 50% discount. How much do you pay (in ₹)?
15. 15.A shop sells an average of 79 kg of sugar a day for 4 days, and then 46 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
16. 16.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
17. 17.Kabir’s father is twice as old as Kabir. The sum of their ages is 36 years. How old is Kabir?
18. 18.Change 30 m/s into km/h.
19. 19.By selling a table fan for ₹470, a shopkeeper makes a loss of 50%. What did the table fan cost the shopkeeper (in ₹)?
20. 20.By selling a study lamp for ₹1782, a shopkeeper makes a profit of 10%. What did the study lamp cost the shopkeeper (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
22. 22.A bus runs at 30 km/h. How far does it go in 50 minutes (in km)?
23. 23.A pressure cooker is marked at ₹700. The shop takes 20% off, and then a further 10% off the new price. How much do you pay (in ₹)?
24. 24.Rohan and Diya together finish a job in 6 days. Rohan alone takes 9 days. How many days would Diya take alone?
25. 25.Change 36 km/h into metres per second.
26. 26.By selling a study lamp for ₹1026, a shopkeeper makes a loss of 5%. What did the study lamp cost the shopkeeper (in ₹)?
27. 27.The price of a school bag changes from ₹620 to ₹713. By what percent did it go up?
28. 28.Marks of 6 friends in a quiz: 29, 11, 17, 36, 10, 47. What is their average mark?
29. 29.Zoya and Kavya together finish a job in 4 days. Zoya alone takes 6 days. How many days would Kavya take alone?
30. 30.Sneha’s father is four times as old as Sneha. The sum of their ages is 50 years. How old is the father?
31. 31.After a 40% discount, a pressure cooker costs ₹2568. What was its marked price (in ₹)?
32. 32.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
33. 33.By selling a watch for ₹476, a shopkeeper makes a loss of 30%. What did the watch cost the shopkeeper (in ₹)?
34. 34.A price goes up by 10% and then goes up by 50% more. By what percent has it gone up in all? =
35. 35.Kabir cycles to his school at 15 km/h and comes back by the same road at 30 km/h. What is his average speed for the whole trip (in km/h)?
36. 36.Change 5 m/s into km/h.
37. 37.Two discounts of 25% and 10%, one after the other, are the same as one discount of what percent? =
38. 38.3 years ago, Aditya’s mother was four times as old as Aditya. The mother is 23 years old now. How old is Aditya now?
39. 39.In 8 years, Manav will be twice as old as Manav was 2 years ago. How old is Manav now?
40. 40.Zoya can finish a job in 2 days and Rahul in 19 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =

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