Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 995 · 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 town has 3400 people. Its population grows by 10%. How many people live there now?
2. 2.Marks of 6 friends in a quiz: 68, 58, 70, 69, 75, 80. What is their average mark?
3. 3.Karan’s father is three times as old as Karan. The sum of their ages is 20 years. How old is the father?
4. 4.A table fan is marked at ₹480. The shop takes 50% off, and then a further 25% off the new price. How much do you pay (in ₹)?
5. 5.The average weight of 12 children is 29 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
6. 6.What is the difference between the compound interest and the simple interest on ₹24000 at 25% per year for 2 years (in ₹)?
7. 7.The average weight of 8 children is 39 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
8. 8.A pressure cooker is marked at ₹992. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
9. 9.Aarav is 10 years older than Aditya. In 5 years, the sum of their ages will be 38. How old is Aditya now?
10. 10.In 12 years, Dev will be twice as old as Dev was 6 years ago. How old is Dev now?
11. 11.What sum of money earns ₹6525 simple interest in 5 years at 15% per year (in ₹)?
12. 12.The price of a school bag changes from ₹3540 to ₹2478. By what percent did it come down?
13. 13.A town has 1620 people. Its population grows by 5%. How many people live there now?
14. 14.In how many years will ₹7100 earn ₹1420 as simple interest at 5% per year?
15. 15.Find the amount when ₹33125 is invested at 8% per year compound interest for 2 years (in ₹).
16. 16.The price of a school bag changes from ₹3540 to ₹4956. By what percent did it go up?
17. 17.In how many years will ₹2700 earn ₹648 as simple interest at 12% per year?
18. 18.Tara can finish a job in 14 days and Meera in 12 days. What fraction of the job do they finish if they work together for 2 days? =
19. 19.The average of 9 numbers is 23. When one more number is added, the average becomes 27. What number was added?
20. 20.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
21. 21.A shopkeeper buys a bicycle for ₹600 and sells it for ₹900. Find the profit percent.
22. 22.The average of 8 numbers is 60. When one more number is added, the average becomes 64. What number was added?
23. 23.A water tank holds 3240 litres. 30% of the water is used. How many litres are left?
24. 24.A price comes down by 40% and then comes down by 10% more. By what percent has it come down in all? =
25. 25.By selling a cricket bat for ₹230, a shopkeeper makes a loss of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
26. 26.A shop sells 700 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
27. 27.A price comes down by 15% and then comes down by 40% more. By what percent has it come down in all? =
28. 28.Change 18 km/h into metres per second.
29. 29.Find the simple interest on ₹16400 at 6% per year for 5 years (in ₹).
30. 30.The price of a school bag changes from ₹580 to ₹406. By what percent did it come down?
31. 31.A school bag marked at ₹160 is sold for ₹112. What is the discount percent?
32. 32.A cricket bat is marked at ₹4120. The shop gives a 30% discount. How much do you pay (in ₹)?
33. 33.Rahul’s father is five times as old as Rahul. The sum of their ages is 42 years. How old is the father?
34. 34.Find the compound interest on ₹14125 at 20% per year for 2 years, added every year (in ₹).
35. 35.What sum of money earns ₹3600 simple interest in 2 years at 9% per year (in ₹)?
36. 36.By selling a watch for ₹935, a shopkeeper makes a loss of 15%. What did the watch cost the shopkeeper (in ₹)?
37. 37.A table fan bought for ₹120 is sold at a loss of 50%. What is the selling price (in ₹)?
38. 38.By selling a watch for ₹150, a shopkeeper makes a loss of 50%. What did the watch cost the shopkeeper (in ₹)?
39. 39.Change 35 m/s into km/h.
40. 40.A price comes down by 10% and then comes down by 10% more. By what percent has it come down in all? =

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