Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 524 · 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 5% and then goes up by 30% more. By what percent has it gone up in all? =
2. 2.A price comes down by 10% and then comes down by 40% more. By what percent has it come down in all? =
3. 3.The price of a school bag changes from ₹4440 to ₹2220. By what percent did it come down?
4. 4.Kavya can finish a job in 7 days and Ananya in 12 days. What fraction of the job do they finish if they work together for 3 days? =
5. 5.By selling a study lamp for ₹442, a shopkeeper makes a profit of 30%. What did the study lamp cost the shopkeeper (in ₹)?
6. 6.A shopkeeper buys a bicycle for ₹1600 and sells it for ₹1760. Find the profit percent.
7. 7.In 10 years, Ananya will be twice as old as Ananya was 5 years ago. How old is Ananya now?
8. 8.What is the difference between the compound interest and the simple interest on ₹35400 at 10% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹17200 at 5% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹31250 at 8% per year for 3 years, added every year (in ₹).
11. 11.Find the amount when ₹29760 is invested at 25% per year compound interest for 3 years (in ₹).
12. 12.By selling a watch for ₹1508, a shopkeeper makes a profit of 30%. What did the watch cost the shopkeeper (in ₹)?
13. 13.Two discounts of 25% and 10%, one after the other, are the same as one discount of what percent? =
14. 14.By selling a cricket bat for ₹1248, a shopkeeper makes a profit of 20%. What did the cricket bat cost the shopkeeper (in ₹)?
15. 15.Rohan’s father is twice as old as Rohan. The sum of their ages is 39 years. How old is the father?
16. 16.A watch is marked at ₹944. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹44000 at 15% per year for 2 years (in ₹)?
18. 18.5 years ago, Diya’s mother was four times as old as Diya. The mother is 45 years old now. How old is Diya now?
19. 19.In 11 years, Priya will be twice as old as Priya was 4 years ago. How old is Priya now?
20. 20.Rohan’s batting average after 6 innings is 48 runs. How many runs must Rohan score in the next innings to raise the average to 50?
21. 21.Dev and Rahul together finish a job in 8 days. Dev alone takes 9 days. How many days would Rahul take alone?
22. 22.Change 25 m/s into km/h.
23. 23.Marks of 5 friends in a quiz: 38, 28, 46, 32, 36. What is their average mark?
24. 24.Rahul can finish a job in 12 days and Kabir in 14 days. What fraction of the job do they finish if they work together for 2 days? =
25. 25.A cricket bat marked at ₹3800 is sold for ₹3230. What is the discount percent?
26. 26.A study lamp is marked at ₹1050. The shop takes 10% off, and then a further 20% off the new price. How much do you pay (in ₹)?
27. 27.Find the amount when ₹1875 is invested at 20% per year compound interest for 3 years (in ₹).
28. 28.The simple interest on ₹19300 for 3 years is ₹2895. What is the rate of interest (% per year)?
29. 29.Find the amount when ₹8125 is invested at 12% per year compound interest for 2 years (in ₹).
30. 30.6 years ago, Saanvi’s mother was three times as old as Saanvi. The mother is 30 years old now. How old is Saanvi now?
31. 31.Kabir cycles to his school at 10 km/h and comes back by the same road at 40 km/h. What is his average speed for the whole trip (in km/h)?
32. 32.Kabir cycles to his school at 42 km/h and comes back by the same road at 84 km/h. What is his average speed for the whole trip (in km/h)?
33. 33.Diya puts ₹3700 in a bank at 13% simple interest per year. How much will she have after 4 years (in ₹)?
34. 34.By selling a school bag for ₹392, a shopkeeper makes a loss of 30%. What did the school bag cost the shopkeeper (in ₹)?
35. 35.Nisha is 4 years older than Kabir. In 8 years, the sum of their ages will be 72. How old is Kabir now?
36. 36.Karan can finish a job in 10 days and Dev in 15 days. Karan works alone for 2 days and then stops. Dev finishes the rest. How many days does Dev take?
37. 37.3 years ago, Karan’s mother was four times as old as Karan. The mother is 35 years old now. How old is Karan now?
38. 38.A study lamp is marked at ₹584. The shop takes 25% off, and then a further 50% off the new price. How much do you pay (in ₹)?
39. 39.The price of a school bag changes from ₹2100 to ₹1995. By what percent did it come down?
40. 40.Change 30 m/s into km/h.

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