Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 483 · 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 average weight of 7 children is 33 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
2. 2.A water tank holds 2140 litres. 5% of the water is used. How many litres are left?
3. 3.The average of 7 numbers is 46. When one more number is added, the average becomes 51. What number was added?
4. 4.Find the compound interest on ₹9456 at 25% per year for 2 years, added every year (in ₹).
5. 5.Arjun works three times as fast as Ananya. Together they finish a job in 4 days. How many days would Ananya take alone?
6. 6.A shop sells 480 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
7. 7.Change 15 m/s into km/h.
8. 8.In 22 years, Isha will be twice as old as Isha was 2 years ago. How old is Isha now?
9. 9.In 13 years, Ananya will be twice as old as Ananya was 4 years ago. How old is Ananya now?
10. 10.Find the compound interest on ₹34752 at 25% per year for 3 years, added every year (in ₹).
11. 11.In how many years will ₹12200 earn ₹4026 as simple interest at 11% per year?
12. 12.After a 15% discount, a table fan costs ₹2720. What was its marked price (in ₹)?
13. 13.Find the amount when ₹28528 is invested at 25% per year compound interest for 2 years (in ₹).
14. 14.A water tank holds 80 litres. 40% of the water is used. How many litres are left?
15. 15.Find the simple interest on ₹19000 at 3% per year for 3 years (in ₹).
16. 16.Find the compound interest on ₹26400 at 10% per year for 2 years, added every year (in ₹).
17. 17.Marks of 4 friends in a quiz: 35, 16, 28, 17. What is their average mark?
18. 18.A pair of shoes marked at ₹3260 is sold for ₹3097. What is the discount percent?
19. 19.Meera is 9 years older than Tara. In 2 years, the sum of their ages will be 47. How old is Tara now?
20. 20.By selling a pair of shoes for ₹435, a shopkeeper makes a loss of 25%. What did the pair of shoes cost the shopkeeper (in ₹)?
21. 21.Priya can finish a job in 5 days and Diya in 20 days. What fraction of the job do they finish if they work together for 1 day? =
22. 22.In 20 years, Zoya will be three times as old as Zoya was 2 years ago. How old is Zoya now?
23. 23.Diya can finish a job in 5 days and Tara in 10 days. Diya works alone for 3 days and then stops. Tara finishes the rest. How many days does Tara take?
24. 24.In 13 years, Ishaan will be twice as old as Ishaan was 5 years ago. How old is Ishaan now?
25. 25.The average of 4 numbers is 20. When one more number is added, the average becomes 22. What number was added?
26. 26.The simple interest on ₹2800 for 5 years is ₹700. What is the rate of interest (% per year)?
27. 27.A shopkeeper buys a study lamp for ₹900 and sells it for ₹720. Find the loss percent.
28. 28.A shop sells an average of 68 kg of sugar a day for 3 days, and then 74 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
29. 29.The price of a school bag changes from ₹2920 to ₹3358. By what percent did it go up?
30. 30.By selling a watch for ₹1750, a shopkeeper makes a profit of 25%. What did the watch cost the shopkeeper (in ₹)?
31. 31.Find the simple interest on ₹12300 at 10% per year for 3 years (in ₹).
32. 32.Change 54 km/h into metres per second.
33. 33.Change 40 m/s into km/h.
34. 34.9 years ago, Rohan’s mother was three times as old as Rohan. The mother is 33 years old now. How old is Rohan now?
35. 35.A shop sells an average of 31 kg of sugar a day for 5 days, and then 75 kg a day for the next 6 days. What is the average sale per day for all 11 days (in kg)?
36. 36.Ishaan works twice as fast as Diya. Together they finish a job in 8 days. How many days would Diya take alone?
37. 37.A pressure cooker is marked at ₹412. The shop takes 50% off, and then a further 50% off the new price. How much do you pay (in ₹)?
38. 38.Diya puts ₹11100 in a bank at 5% simple interest per year. How much will she have after 2 years (in ₹)?
39. 39.In 4 years, Aarav will be three times as old as Aarav was 6 years ago. How old is Aarav now?
40. 40.Meera is 2 years older than Kavya. In 5 years, the sum of their ages will be 32. How old is Kavya now?

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