Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 474 · 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 price goes up by 20% and then goes up by 15% more. By what percent has it gone up in all? =
2. 2.What sum of money earns ₹594 simple interest in 2 years at 9% per year (in ₹)?
3. 3.By selling a school bag for ₹1224, a shopkeeper makes a loss of 15%. What did the school bag cost the shopkeeper (in ₹)?
4. 4.Kabir cycles to his school at 12 km/h and comes back by the same road at 20 km/h. What is his average speed for the whole trip (in km/h)?
5. 5.By selling a pressure cooker for ₹2047, a shopkeeper makes a profit of 15%. What did the pressure cooker cost the shopkeeper (in ₹)?
6. 6.2 years ago, Aarav’s mother was twice as old as Aarav. The mother is 20 years old now. How old is Aarav now?
7. 7.A cricket bat marked at ₹2780 is sold for ₹2641. What is the discount percent?
8. 8.Meera can finish a job in 11 days and Diya in 6 days. What fraction of the job do they finish if they work together for 1 day? =
9. 9.A shopkeeper buys a table fan for ₹100 and sells it for ₹110. Find the profit percent.
10. 10.Find the compound interest on ₹40000 at 15% per year for 3 years, added every year (in ₹).
11. 11.A shopkeeper buys a watch for ₹1900 and sells it for ₹1140. Find the loss percent.
12. 12.By selling a watch for ₹364, a shopkeeper makes a loss of 30%. What did the watch cost the shopkeeper (in ₹)?
13. 13.A bus runs at 40 km/h. How far does it go in 30 minutes (in km)?
14. 14.Find the compound interest on ₹8000 at 10% per year for 3 years, added every year (in ₹).
15. 15.A study lamp is marked at ₹1220. The shop gives a 5% discount. How much do you pay (in ₹)?
16. 16.The average weight of 11 children is 39 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
17. 17.Pooja’s father is three times as old as Pooja. The sum of their ages is 36 years. How old is the father?
18. 18.Ananya’s batting average after 8 innings is 39 runs. How many runs must Ananya score in the next innings to raise the average to 40?
19. 19.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
20. 20.A bus runs at 52 km/h. How far does it go in 30 minutes (in km)?
21. 21.A town has 160 people. Its population grows by 25%. How many people live there now?
22. 22.Find the simple interest on ₹3800 at 2% per year for 3 years (in ₹).
23. 23.Ishaan is 6 years older than Dev. In 6 years, the sum of their ages will be 62. How old is Dev now?
24. 24.8 years ago, Diya’s mother was twice as old as Diya. The mother is 30 years old now. How old is Diya now?
25. 25.Find the simple interest on ₹13600 at 12% per year for 3 years (in ₹).
26. 26.The price of a school bag changes from ₹2580 to ₹2709. By what percent did it go up?
27. 27.The simple interest on ₹17500 for 4 years is ₹9800. What is the rate of interest (% per year)?
28. 28.The average of 9 numbers is 31. When one more number is added, the average becomes 33. What number was added?
29. 29.A bus runs at 39 km/h. How far does it go in 40 minutes (in km)?
30. 30.Change 36 km/h into metres per second.
31. 31.What is the difference between the compound interest and the simple interest on ₹26000 at 15% per year for 2 years (in ₹)?
32. 32.A shopkeeper buys a watch for ₹1820 and sells it for ₹2184. Find the profit percent.
33. 33.Find the compound interest on ₹31250 at 4% per year for 3 years, added every year (in ₹).
34. 34.A study lamp marked at ₹2840 is sold for ₹2272. What is the discount percent?
35. 35.Marks of 6 friends in a quiz: 33, 9, 21, 14, 8, 35. What is their average mark?
36. 36.Tara is 9 years older than Kabir. In 8 years, the sum of their ages will be 53. How old is Kabir now?
37. 37.The average weight of 10 children is 45 kg. One child, who weighs 54 kg, leaves the group. What is the new average weight (in kg)?
38. 38.By selling a study lamp for ₹336, a shopkeeper makes a profit of 20%. What did the study lamp cost the shopkeeper (in ₹)?
39. 39.A shop sells an average of 50 kg of sugar a day for 3 days, and then 34 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
40. 40.The average of 8 numbers is 22. When one more number is added, the average becomes 25. What number was added?

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