Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 22 · 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.A shopkeeper buys a study lamp for ₹1000 and sells it for ₹800. Find the loss percent.
2. 2.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
3. 3.Ishaan can finish a job in 7 days and Kavya in 9 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
4. 4.7 years ago, Aarav’s mother was twice as old as Aarav. The mother is 13 years old now. How old is Aarav now?
5. 5.Diya puts ₹9400 in a bank at 14% simple interest per year. How much will she have after 5 years (in ₹)?
6. 6.A shop sells an average of 34 kg of sugar a day for 5 days, and then 61 kg a day for the next 4 days. What is the average sale per day for all 9 days (in kg)?
7. 7.A bicycle bought for ₹1220 is sold at a loss of 20%. What is the selling price (in ₹)?
8. 8.A bus runs at 38 km/h. How far does it go in 90 minutes (in km)?
9. 9.A shop sells 1720 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
10. 10.8 years ago, Ananya’s mother was four times as old as Ananya. The mother is 32 years old now. How old is Ananya now?
11. 11.Isha’s batting average after 12 innings is 47 runs. How many runs must Isha score in the next innings to raise the average to 49?
12. 12.The average of 9 numbers is 15. When one more number is added, the average becomes 21. What number was added?
13. 13.Marks of 6 friends in a quiz: 45, 66, 56, 43, 49, 59. What is their average mark?
14. 14.Change 54 km/h into metres per second.
15. 15.A shop sells an average of 76 kg of sugar a day for 5 days, and then 48 kg a day for the next 2 days. What is the average sale per day for all 7 days (in kg)?
16. 16.By selling a school bag for ₹1428, a shopkeeper makes a loss of 15%. What did the school bag cost the shopkeeper (in ₹)?
17. 17.Kabir cycles to his school at 42 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)?
18. 18.Saanvi can finish a job in 12 days and Dev in 14 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
19. 19.A town has 2060 people. Its population grows by 40%. How many people live there now?
20. 20.The average weight of 8 children is 31 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
21. 21.Change 20 m/s into km/h.
22. 22.What sum of money earns ₹6144 simple interest in 4 years at 8% per year (in ₹)?
23. 23.Isha and Ananya together finish a job in 4 days. Isha alone takes 5 days. How many days would Ananya take alone?
24. 24.A watch is marked at ₹1080. The shop takes 25% off, and then a further 10% off the new price. How much do you pay (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹30400 at 15% per year for 2 years (in ₹)?
26. 26.A shopkeeper buys a pair of shoes for ₹1140 and sells it for ₹1482. Find the profit percent.
27. 27.By selling a study lamp for ₹1456, a shopkeeper makes a profit of 40%. What did the study lamp cost the shopkeeper (in ₹)?
28. 28.Diya puts ₹11000 in a bank at 14% simple interest per year. How much will she have after 5 years (in ₹)?
29. 29.Find the simple interest on ₹15900 at 15% per year for 4 years (in ₹).
30. 30.A shop sells 1240 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
31. 31.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
32. 32.Change 36 km/h into metres per second.
33. 33.Change 10 m/s into km/h.
34. 34.After a 50% discount, a pressure cooker costs ₹1040. What was its marked price (in ₹)?
35. 35.9 years ago, Priya’s mother was twice as old as Priya. The mother is 15 years old now. How old is Priya now?
36. 36.Find the amount when ₹9525 is invested at 20% per year compound interest for 2 years (in ₹).
37. 37.Isha can finish a job in 13 days and Karan in 15 days. What fraction of the job do they finish if they work together for 2 days? =
38. 38.In 9 years, Manav will be twice as old as Manav was 3 years ago. How old is Manav now?
39. 39.Diya is 9 years older than Nisha. In 5 years, the sum of their ages will be 35. How old is Nisha now?
40. 40.The price of a school bag changes from ₹4080 to ₹5100. By what percent did it go up?

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