Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 57 · 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.Change 108 km/h into metres per second.
2. 2.A study lamp is marked at ₹1320. The shop gives a 15% discount. How much do you pay (in ₹)?
3. 3.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
4. 4.By selling a bicycle for ₹1170, a shopkeeper makes a profit of 50%. What did the bicycle cost the shopkeeper (in ₹)?
5. 5.The average weight of 10 children is 42 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
6. 6.Farhan can finish a job in 16 days and Ishaan in 18 days. What fraction of the job do they finish if they work together for 1 day? =
7. 7.Kavya’s father is three times as old as Kavya. The sum of their ages is 32 years. How old is Kavya?
8. 8.Isha can finish a job in 10 days and Kabir in 6 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
9. 9.What is the difference between the compound interest and the simple interest on ₹19200 at 10% per year for 2 years (in ₹)?
10. 10.Ishaan works three times as fast as Meera. Together they finish a job in 3 days. How many days would Meera take alone?
11. 11.A bicycle marked at ₹3480 is sold for ₹3306. What is the discount percent?
12. 12.A cricket bat marked at ₹4720 is sold for ₹2832. What is the discount percent?
13. 13.Change 15 m/s into km/h.
14. 14.The average of 9 numbers is 40. When one more number is added, the average becomes 41. What number was added?
15. 15.Find the amount when ₹15625 is invested at 4% per year compound interest for 3 years (in ₹).
16. 16.Marks of 4 friends in a quiz: 85, 79, 96, 80. What is their average mark?
17. 17.By selling a pair of shoes for ₹2002, a shopkeeper makes a profit of 30%. What did the pair of shoes cost the shopkeeper (in ₹)?
18. 18.Farhan’s batting average after 5 innings is 22 runs. How many runs must Farhan score in the next innings to raise the average to 25?
19. 19.Find the simple interest on ₹10200 at 15% per year for 4 years (in ₹).
20. 20.A price comes down by 50% and then comes down by 5% more. By what percent has it come down in all? =
21. 21.The average weight of 8 children is 31 kg. One child, who weighs 45 kg, leaves the group. What is the new average weight (in kg)?
22. 22.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
23. 23.What sum of money earns ₹888 simple interest in 1 year at 6% per year (in ₹)?
24. 24.After a 20% discount, a watch costs ₹3152. What was its marked price (in ₹)?
25. 25.Marks of 6 friends in a quiz: 53, 50, 72, 76, 76, 51. What is their average mark?
26. 26.A shopkeeper buys a pressure cooker for ₹1940 and sells it for ₹2037. Find the profit percent.
27. 27.Kabir cycles to his school at 35 km/h and comes back by the same road at 14 km/h. What is his average speed for the whole trip (in km/h)?
28. 28.By selling a pair of shoes for ₹260, a shopkeeper makes a profit of 30%. What did the pair of shoes cost the shopkeeper (in ₹)?
29. 29.By selling a pressure cooker for ₹594, a shopkeeper makes a loss of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
30. 30.Saanvi can finish a job in 8 days and Tara in 12 days. Saanvi works alone for 6 days and then stops. Tara finishes the rest. How many days does Tara take?
31. 31.Nisha works twice as fast as Kabir. Together they finish a job in 6 days. How many days would Kabir take alone?
32. 32.A pair of shoes is marked at ₹4840. The shop gives a 25% discount. How much do you pay (in ₹)?
33. 33.9 years ago, Sneha’s mother was four times as old as Sneha. The mother is 21 years old now. How old is Sneha now?
34. 34.Find the simple interest on ₹8300 at 10% per year for 3 years (in ₹).
35. 35.Meera works three times as fast as Saanvi. Together they finish a job in 9 days. How many days would Saanvi take alone?
36. 36.A shop sells an average of 30 kg of sugar a day for 2 days, and then 75 kg a day for the next 4 days. What is the average sale per day for all 6 days (in kg)?
37. 37.A cricket bat marked at ₹4540 is sold for ₹3178. What is the discount percent?
38. 38.2 years ago, Kabir’s mother was twice as old as Kabir. The mother is 8 years old now. How old is Kabir now?
39. 39.A cricket bat marked at ₹3760 is sold for ₹2256. What is the discount percent?
40. 40.The average of 9 numbers is 24. When one more number is added, the average becomes 25. What number was added?

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