Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 33 · 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 car runs for 1 hour at 44 km/h and then for 3 hours at 48 km/h. What is its average speed for the whole journey (in km/h)?
2. 2.Change 35 m/s into km/h.
3. 3.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
4. 4.Two discounts of 25% and 20%, one after the other, are the same as one discount of what percent? =
5. 5.Diya puts ₹5200 in a bank at 2% simple interest per year. How much will she have after 3 years (in ₹)?
6. 6.A water tank holds 2880 litres. 15% of the water is used. How many litres are left?
7. 7.What sum of money earns ₹976 simple interest in 2 years at 4% per year (in ₹)?
8. 8.Zoya works three times as fast as Arjun. Together they finish a job in 9 days. How many days would Arjun take alone?
9. 9.The average weight of 8 children is 34 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
10. 10.A price goes up by 5% and then goes up by 30% more. By what percent has it gone up in all? =
11. 11.A price goes up by 20% and then goes up by 40% more. By what percent has it gone up in all? =
12. 12.What is the difference between the compound interest and the simple interest on ₹46600 at 20% per year for 2 years (in ₹)?
13. 13.After a 30% discount, a watch costs ₹2156. What was its marked price (in ₹)?
14. 14.A shop sells an average of 67 kg of sugar a day for 6 days, and then 51 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
15. 15.Find the compound interest on ₹49625 at 20% per year for 3 years, added every year (in ₹).
16. 16.By selling a school bag for ₹132, a shopkeeper makes a loss of 40%. What did the school bag cost the shopkeeper (in ₹)?
17. 17.The average weight of 7 children is 48 kg. One child, who weighs 66 kg, leaves the group. What is the new average weight (in kg)?
18. 18.The price of a school bag changes from ₹3000 to ₹3750. By what percent did it go up?
19. 19.Find the compound interest on ₹49600 at 15% per year for 2 years, added every year (in ₹).
20. 20.Find the amount when ₹15625 is invested at 8% per year compound interest for 3 years (in ₹).
21. 21.By selling a bicycle for ₹252, a shopkeeper makes a loss of 30%. What did the bicycle cost the shopkeeper (in ₹)?
22. 22.Ishaan can finish a job in 15 days and Aarav in 20 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
23. 23.Change 10 m/s into km/h.
24. 24.A water tank holds 4360 litres. 10% of the water is used. How many litres are left?
25. 25.Find the compound interest on ₹32000 at 5% per year for 3 years, added every year (in ₹).
26. 26.Find the amount when ₹27600 is invested at 5% per year compound interest for 2 years (in ₹).
27. 27.Change 108 km/h into metres per second.
28. 28.Manav’s batting average after 11 innings is 21 runs. How many runs must Manav score in the next innings to raise the average to 24?
29. 29.The average of 6 numbers is 17. When one more number is added, the average becomes 22. What number was added?
30. 30.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
31. 31.Find the amount when ₹11000 is invested at 10% per year compound interest for 3 years (in ₹).
32. 32.A shopkeeper buys a study lamp for ₹420 and sells it for ₹357. Find the loss percent.
33. 33.A table fan is marked at ₹4580. The shop gives a 15% discount. How much do you pay (in ₹)?
34. 34.Ananya can finish a job in 20 days and Priya in 18 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
35. 35.Aarav can finish a job in 17 days and Tara in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
36. 36.A shopkeeper buys a watch for ₹1840 and sells it for ₹2116. Find the profit percent.
37. 37.A study lamp bought for ₹640 is sold at a loss of 30%. What is the selling price (in ₹)?
38. 38.The simple interest on ₹14900 for 1 year is ₹2235. What is the rate of interest (% per year)?
39. 39.In how many years will ₹15600 earn ₹1560 as simple interest at 10% per year?
40. 40.Aarav can finish a job in 7 days and Kabir in 13 days. What fraction of the job do they finish if they work together for 3 days? =

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