Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 86 · 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 740 litres. 50% of the water is used. How many litres are left?
2. 2.A bicycle bought for ₹1040 is sold at a profit of 50%. What is the selling price (in ₹)?
3. 3.After a 10% discount, a cricket bat costs ₹4140. What was its marked price (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹48000 at 5% per year for 2 years (in ₹)?
5. 5.Tara works three times as fast as Vivaan. Together they finish a job in 4 days. How many days would Vivaan take alone?
6. 6.By selling a study lamp for ₹936, a shopkeeper makes a loss of 10%. What did the study lamp cost the shopkeeper (in ₹)?
7. 7.Arjun and Meera together finish a job in 9 days. Arjun alone takes 18 days. How many days would Meera take alone?
8. 8.Manav can finish a job in 9 days and Dev in 30 days. Manav works alone for 6 days and then stops. Dev finishes the rest. How many days does Dev take?
9. 9.A shopkeeper buys a bicycle for ₹220 and sells it for ₹231. Find the profit percent.
10. 10.A water tank holds 100 litres. 5% of the water is used. How many litres are left?
11. 11.A pair of shoes bought for ₹1120 is sold at a loss of 10%. What is the selling price (in ₹)?
12. 12.The average of 7 numbers is 59. When one more number is added, the average becomes 60. What number was added?
13. 13.Saanvi can finish a job in 19 days and Farhan in 16 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
14. 14.Change 90 km/h into metres per second.
15. 15.Aarav’s batting average after 15 innings is 27 runs. How many runs must Aarav score in the next innings to raise the average to 29?
16. 16.A table fan is marked at ₹1100. The shop gives a 30% discount. How much do you pay (in ₹)?
17. 17.Diya puts ₹12500 in a bank at 7% simple interest per year. How much will she have after 2 years (in ₹)?
18. 18.By selling a pressure cooker for ₹144, a shopkeeper makes a loss of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
19. 19.Meera can finish a job in 11 days and Rohan in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
20. 20.Change 35 m/s into km/h.
21. 21.Find the compound interest on ₹6875 at 4% per year for 2 years, added every year (in ₹).
22. 22.The average weight of 6 children is 33 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
23. 23.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
24. 24.Find the compound interest on ₹5200 at 15% per year for 2 years, added every year (in ₹).
25. 25.A shop sells 3760 cups of tea a month. Next month it sells 40% more. How many cups does it sell next month?
26. 26.A watch marked at ₹3480 is sold for ₹2610. What is the discount percent?
27. 27.A water tank holds 4920 litres. 20% of the water is used. How many litres are left?
28. 28.3 years ago, Dev’s mother was twice as old as Dev. The mother is 9 years old now. How old is Dev now?
29. 29.Kabir can finish a job in 5 days and Manav in 10 days. Kabir works alone for 2 days and then stops. Manav finishes the rest. How many days does Manav take?
30. 30.The simple interest on ₹17900 for 1 year is ₹2506. What is the rate of interest (% per year)?
31. 31.What is the difference between the compound interest and the simple interest on ₹6400 at 15% per year for 2 years (in ₹)?
32. 32.Kabir and Saanvi together finish a job in 6 days. Kabir alone takes 8 days. How many days would Saanvi take alone?
33. 33.After a 5% discount, a pair of shoes costs ₹2014. What was its marked price (in ₹)?
34. 34.The price of a school bag changes from ₹4440 to ₹2664. By what percent did it come down?
35. 35.A price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
36. 36.A town has 2800 people. Its population grows by 5%. How many people live there now?
37. 37.Find the amount when ₹8300 is invested at 20% per year compound interest for 2 years (in ₹).
38. 38.Find the simple interest on ₹11400 at 14% per year for 4 years (in ₹).
39. 39.The price of a school bag changes from ₹3920 to ₹4704. By what percent did it go up?
40. 40.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =

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