Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 133 · 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 price of a school bag changes from ₹900 to ₹540. By what percent did it come down?
2. 2.Karan’s father is three times as old as Karan. The sum of their ages is 56 years. How old is the father?
3. 3.The price of a school bag changes from ₹1000 to ₹1400. By what percent did it go up?
4. 4.A price goes up by 10% and then goes up by 20% more. By what percent has it gone up in all? =
5. 5.A water tank holds 300 litres. 20% of the water is used. How many litres are left?
6. 6.A shop sells an average of 25 kg of sugar a day for 5 days, and then 43 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
7. 7.A watch is marked at ₹3920. The shop gives a 50% discount. How much do you pay (in ₹)?
8. 8.A price comes down by 10% and then comes down by 50% more. By what percent has it come down in all? =
9. 9.Aditya is 9 years older than Aarav. In 2 years, the sum of their ages will be 39. How old is Aarav now?
10. 10.Arjun can finish a job in 5 days and Diya in 10 days. What fraction of the job do they finish if they work together for 1 day? =
11. 11.In how many years will ₹9400 earn ₹1880 as simple interest at 4% per year?
12. 12.Find the amount when ₹20875 is invested at 20% per year compound interest for 3 years (in ₹).
13. 13.In how many years will ₹6700 earn ₹804 as simple interest at 12% per year?
14. 14.A price goes up by 25% and then goes up by 40% more. By what percent has it gone up in all? =
15. 15.The average of 4 numbers is 19. When one more number is added, the average becomes 25. What number was added?
16. 16.Diya is 2 years older than Tara. In 8 years, the sum of their ages will be 48. How old is Tara now?
17. 17.A shopkeeper buys a school bag for ₹1320 and sells it for ₹1980. Find the profit percent.
18. 18.Marks of 4 friends in a quiz: 40, 14, 24, 38. What is their average mark?
19. 19.What sum of money earns ₹357 simple interest in 1 year at 3% per year (in ₹)?
20. 20.Diya puts ₹500 in a bank at 12% simple interest per year. How much will she have after 1 year (in ₹)?
21. 21.A water tank holds 80 litres. 20% of the water is used. How many litres are left?
22. 22.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
23. 23.A pressure cooker is marked at ₹4280. The shop gives a 20% discount. How much do you pay (in ₹)?
24. 24.By selling a pressure cooker for ₹616, a shopkeeper makes a profit of 40%. What did the pressure cooker cost the shopkeeper (in ₹)?
25. 25.Diya puts ₹16400 in a bank at 2% simple interest per year. How much will she have after 2 years (in ₹)?
26. 26.By selling a pair of shoes for ₹420, a shopkeeper makes a profit of 50%. What did the pair of shoes cost the shopkeeper (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹9700 at 10% per year for 2 years (in ₹)?
28. 28.A study lamp is marked at ₹415. The shop takes 20% off, and then a further 25% off the new price. How much do you pay (in ₹)?
29. 29.A price goes up by 15% and then goes up by 25% more. By what percent has it gone up in all? =
30. 30.Change 36 km/h into metres per second.
31. 31.The simple interest on ₹8500 for 1 year is ₹1275. What is the rate of interest (% per year)?
32. 32.The price of a school bag changes from ₹2620 to ₹2489. By what percent did it come down?
33. 33.Find the simple interest on ₹5900 at 2% per year for 5 years (in ₹).
34. 34.Change 40 m/s into km/h.
35. 35.Pooja can finish a job in 11 days and Isha in 18 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
36. 36.By selling a cricket bat for ₹1350, a shopkeeper makes a loss of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
37. 37.Marks of 5 friends in a quiz: 67, 62, 44, 44, 73. What is their average mark?
38. 38.A water tank holds 3500 litres. 30% of the water is used. How many litres are left?
39. 39.The average of 8 numbers is 48. When one more number is added, the average becomes 54. What number was added?
40. 40.Diya puts ₹6000 in a bank at 14% simple interest per year. How much will she have after 1 year (in ₹)?

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