Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 965 · 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 ₹726, a shopkeeper makes a profit of 10%. What did the watch cost the shopkeeper (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
3. 3.The average of 4 numbers is 21. When one more number is added, the average becomes 23. What number was added?
4. 4.By selling a pressure cooker for ₹2492, a shopkeeper makes a profit of 40%. What did the pressure cooker cost the shopkeeper (in ₹)?
5. 5.The average weight of 6 children is 28 kg. One child, who weighs 33 kg, leaves the group. What is the new average weight (in kg)?
6. 6.The average of 9 numbers is 26. When one more number is added, the average becomes 31. What number was added?
7. 7.Isha can finish a job in 18 days and Diya in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
8. 8.Ananya works twice as fast as Arjun. Together they finish a job in 7 days. How many days would Arjun take alone?
9. 9.In 10 years, Manav will be twice as old as Manav was 5 years ago. How old is Manav now?
10. 10.Find the simple interest on ₹600 at 12% per year for 1 year (in ₹).
11. 11.Kabir is 6 years older than Rohan. In 7 years, the sum of their ages will be 60. How old is Rohan now?
12. 12.Isha’s father is three times as old as Isha. The sum of their ages is 52 years. How old is Isha?
13. 13.In 11 years, Vivaan will be twice as old as Vivaan was 2 years ago. How old is Vivaan now?
14. 14.The simple interest on ₹15400 for 2 years is ₹4620. What is the rate of interest (% per year)?
15. 15.Aditya’s father is twice as old as Aditya. The sum of their ages is 18 years. How old is Aditya?
16. 16.A car runs for 4 hours at 44 km/h and then for 4 hours at 28 km/h. What is its average speed for the whole journey (in km/h)?
17. 17.The average weight of 9 children is 34 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
18. 18.Marks of 4 friends in a quiz: 72, 48, 50, 62. What is their average mark?
19. 19.A water tank holds 960 litres. 5% of the water is used. How many litres are left?
20. 20.Aditya can finish a job in 17 days and Pooja in 12 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
21. 21.A watch bought for ₹80 is sold at a profit of 25%. What is the selling price (in ₹)?
22. 22.A water tank holds 3200 litres. 15% of the water is used. How many litres are left?
23. 23.The price of a school bag changes from ₹3320 to ₹3154. By what percent did it come down?
24. 24.What is the difference between the compound interest and the simple interest on ₹31600 at 15% per year for 2 years (in ₹)?
25. 25.A shopkeeper buys a pair of shoes for ₹920 and sells it for ₹1150. Find the profit percent.
26. 26.The simple interest on ₹17300 for 3 years is ₹6747. What is the rate of interest (% per year)?
27. 27.Kavya’s batting average after 13 innings is 32 runs. How many runs must Kavya score in the next innings to raise the average to 34?
28. 28.A school bag marked at ₹260 is sold for ₹221. What is the discount percent?
29. 29.Rohan can finish a job in 11 days and Zoya in 6 days. What fraction of the job do they finish if they work together for 1 day? =
30. 30.The price of a school bag changes from ₹4800 to ₹6720. By what percent did it go up?
31. 31.In how many years will ₹4000 earn ₹320 as simple interest at 4% per year?
32. 32.A study lamp is marked at ₹508. The shop takes 50% off, and then a further 50% off the new price. How much do you pay (in ₹)?
33. 33.Saanvi and Vivaan together finish a job in 4 days. Saanvi alone takes 8 days. How many days would Vivaan take alone?
34. 34.A water tank holds 280 litres. 20% of the water is used. How many litres are left?
35. 35.A pressure cooker is marked at ₹3480. The shop gives a 50% discount. How much do you pay (in ₹)?
36. 36.Find the compound interest on ₹18000 at 15% per year for 2 years, added every year (in ₹).
37. 37.The price of a school bag changes from ₹4000 to ₹4400. By what percent did it go up?
38. 38.A shopkeeper buys a table fan for ₹1860 and sells it for ₹2604. Find the profit percent.
39. 39.By selling a table fan for ₹798, a shopkeeper makes a profit of 5%. What did the table fan cost the shopkeeper (in ₹)?
40. 40.Saanvi’s batting average after 13 innings is 49 runs. How many runs must Saanvi score in the next innings to raise the average to 54?

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