Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 951 · 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 water tank holds 4480 litres. 15% of the water is used. How many litres are left?
2. 2.Vivaan’s father is twice as old as Vivaan. The sum of their ages is 39 years. How old is the father?
3. 3.A shop sells an average of 21 kg of sugar a day for 6 days, and then 36 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
4. 4.Marks of 5 friends in a quiz: 103, 88, 74, 87, 88. What is their average mark?
5. 5.Change 108 km/h into metres per second.
6. 6.What sum of money earns ₹1950 simple interest in 3 years at 5% per year (in ₹)?
7. 7.A cricket bat marked at ₹2760 is sold for ₹2484. What is the discount percent?
8. 8.Marks of 4 friends in a quiz: 48, 32, 28, 44. What is their average mark?
9. 9.Find the amount when ₹2400 is invested at 15% per year compound interest for 2 years (in ₹).
10. 10.A cricket bat is marked at ₹465. The shop takes 20% off, and then a further 50% off the new price. How much do you pay (in ₹)?
11. 11.Arjun and Zoya together finish a job in 5 days. Arjun alone takes 10 days. How many days would Zoya take alone?
12. 12.Saanvi is 2 years older than Arjun. In 2 years, the sum of their ages will be 42. How old is Arjun now?
13. 13.A shopkeeper buys a pressure cooker for ₹1900 and sells it for ₹950. Find the loss percent.
14. 14.In 2 years, Kabir will be twice as old as Kabir was 4 years ago. How old is Kabir now?
15. 15.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
16. 16.A table fan is marked at ₹680. The shop gives a 40% discount. How much do you pay (in ₹)?
17. 17.A watch is marked at ₹880. The shop takes 10% off, and then a further 25% off the new price. How much do you pay (in ₹)?
18. 18.By selling a watch for ₹2200, a shopkeeper makes a profit of 10%. What did the watch cost the shopkeeper (in ₹)?
19. 19.A school bag bought for ₹300 is sold at a loss of 10%. What is the selling price (in ₹)?
20. 20.A price comes down by 25% and then comes down by 30% more. By what percent has it come down in all? =
21. 21.Aarav’s father is twice as old as Aarav. The sum of their ages is 39 years. How old is the father?
22. 22.A school bag bought for ₹860 is sold at a profit of 20%. What is the selling price (in ₹)?
23. 23.A shop sells an average of 20 kg of sugar a day for 3 days, and then 38 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
24. 24.Change 10 m/s into km/h.
25. 25.A cricket bat is marked at ₹520. The shop gives a 5% discount. How much do you pay (in ₹)?
26. 26.A table fan bought for ₹1780 is sold at a profit of 50%. What is the selling price (in ₹)?
27. 27.A study lamp is marked at ₹920. The shop takes 25% off, and then a further 10% off the new price. How much do you pay (in ₹)?
28. 28.The average weight of 12 children is 30 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
29. 29.Find the simple interest on ₹5400 at 5% per year for 1 year (in ₹).
30. 30.A car runs for 1 hour at 54 km/h and then for 4 hours at 74 km/h. What is its average speed for the whole journey (in km/h)?
31. 31.Change 36 km/h into metres per second.
32. 32.Change 54 km/h into metres per second.
33. 33.What sum of money earns ₹4180 simple interest in 2 years at 11% per year (in ₹)?
34. 34.The simple interest on ₹20000 for 2 years is ₹800. What is the rate of interest (% per year)?
35. 35.Change 18 km/h into metres per second.
36. 36.Find the simple interest on ₹4500 at 14% per year for 2 years (in ₹).
37. 37.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
38. 38.Change 20 m/s into km/h.
39. 39.What is the difference between the compound interest and the simple interest on ₹20100 at 20% per year for 2 years (in ₹)?
40. 40.Change 90 km/h into metres per second.

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