Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 863 · 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 price of a school bag changes from ₹4860 to ₹2430. By what percent did it come down?
2. 2.How many minutes does a car take to go 38 km at 76 km/h?
3. 3.A water tank holds 1800 litres. 20% of the water is used. How many litres are left?
4. 4.By selling a school bag for ₹1216, a shopkeeper makes a loss of 20%. What did the school bag cost the shopkeeper (in ₹)?
5. 5.The average of 7 numbers is 43. When one more number is added, the average becomes 44. What number was added?
6. 6.What is the difference between the compound interest and the simple interest on ₹36600 at 10% per year for 2 years (in ₹)?
7. 7.By selling a cricket bat for ₹57, a shopkeeper makes a loss of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
8. 8.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
9. 9.What sum of money earns ₹2850 simple interest in 3 years at 10% per year (in ₹)?
10. 10.A town has 1840 people. Its population grows by 50%. How many people live there now?
11. 11.After a 25% discount, a watch costs ₹2745. What was its marked price (in ₹)?
12. 12.The average of 5 numbers is 44. When one more number is added, the average becomes 45. What number was added?
13. 13.Find the compound interest on ₹31250 at 8% per year for 3 years, added every year (in ₹).
14. 14.Nisha’s batting average after 9 innings is 24 runs. How many runs must Nisha score in the next innings to raise the average to 25?
15. 15.A water tank holds 640 litres. 5% of the water is used. How many litres are left?
16. 16.Zoya can finish a job in 10 days and Vivaan in 25 days. Zoya works alone for 2 days and then stops. Vivaan finishes the rest. How many days does Vivaan take?
17. 17.What is the difference between the compound interest and the simple interest on ₹49600 at 25% per year for 2 years (in ₹)?
18. 18.A price goes up by 15% and then comes down by 10%. By what percent has it gone up in all? =
19. 19.Pooja can finish a job in 9 days and Saanvi in 17 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
20. 20.Diya puts ₹12200 in a bank at 14% simple interest per year. How much will she have after 4 years (in ₹)?
21. 21.Marks of 6 friends in a quiz: 43, 43, 45, 33, 51, 37. What is their average mark?
22. 22.Find the compound interest on ₹1875 at 12% per year for 2 years, added every year (in ₹).
23. 23.Vivaan can finish a job in 5 days and Karan in 10 days. What fraction of the job do they finish if they work together for 1 day? =
24. 24.Aarav can finish a job in 7 days and Pooja in 10 days. What fraction of the job do they finish if they work together for 2 days? =
25. 25.The average of 9 numbers is 38. When one more number is added, the average becomes 40. What number was added?
26. 26.Manav and Aarav together finish a job in 4 days. Manav alone takes 5 days. How many days would Aarav take alone?
27. 27.Find the simple interest on ₹2600 at 5% per year for 2 years (in ₹).
28. 28.Find the compound interest on ₹14000 at 10% per year for 3 years, added every year (in ₹).
29. 29.A shopkeeper buys a watch for ₹840 and sells it for ₹882. Find the profit percent.
30. 30.In 29 years, Rohan will be twice as old as Rohan was 2 years ago. How old is Rohan now?
31. 31.Find the amount when ₹20650 is invested at 20% per year compound interest for 2 years (in ₹).
32. 32.A car runs for 3 hours at 22 km/h and then for 3 hours at 34 km/h. What is its average speed for the whole journey (in km/h)?
33. 33.The price of a school bag changes from ₹2960 to ₹1480. By what percent did it come down?
34. 34.Find the compound interest on ₹47424 at 25% per year for 2 years, added every year (in ₹).
35. 35.The price of a school bag changes from ₹4500 to ₹5625. By what percent did it go up?
36. 36.A car runs for 1 hour at 77 km/h and then for 1 hour at 23 km/h. What is its average speed for the whole journey (in km/h)?
37. 37.A table fan is marked at ₹4840. The shop gives a 50% discount. How much do you pay (in ₹)?
38. 38.A cricket bat is marked at ₹1020. The shop gives a 5% discount. How much do you pay (in ₹)?
39. 39.Change 35 m/s into km/h.
40. 40.Change 90 km/h into metres per second.

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