Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 394 · 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.After a 5% discount, a study lamp costs ₹1767. What was its marked price (in ₹)?
2. 2.The price of a school bag changes from ₹260 to ₹182. By what percent did it come down?
3. 3.What sum of money earns ₹7785 simple interest in 5 years at 9% per year (in ₹)?
4. 4.A cricket bat marked at ₹1300 is sold for ₹1170. What is the discount percent?
5. 5.A water tank holds 540 litres. 20% of the water is used. How many litres are left?
6. 6.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
7. 7.9 years ago, Priya’s mother was three times as old as Priya. The mother is 18 years old now. How old is Priya now?
8. 8.Rohan can finish a job in 12 days and Aditya in 18 days. Rohan works alone for 2 days and then stops. Aditya finishes the rest. How many days does Aditya take?
9. 9.Find the compound interest on ₹32000 at 15% per year for 3 years, added every year (in ₹).
10. 10.The price of a bicycle is ₹760. It goes up by 25%. What is the new price (in ₹)?
11. 11.Ishaan can finish a job in 16 days and Tara in 18 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
12. 12.Kabir cycles to his school at 72 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
13. 13.The average of 7 numbers is 17. When one more number is added, the average becomes 21. What number was added?
14. 14.A water tank holds 340 litres. 50% of the water is used. How many litres are left?
15. 15.Arjun’s batting average after 13 innings is 42 runs. How many runs must Arjun score in the next innings to raise the average to 47?
16. 16.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹25200 at 15% per year for 2 years (in ₹)?
18. 18.9 years ago, Dev’s mother was four times as old as Dev. The mother is 21 years old now. How old is Dev now?
19. 19.A shop sells an average of 34 kg of sugar a day for 2 days, and then 52 kg a day for the next 2 days. What is the average sale per day for all 4 days (in kg)?
20. 20.What sum of money earns ₹5060 simple interest in 4 years at 11% per year (in ₹)?
21. 21.A pair of shoes is marked at ₹1520. The shop takes 25% off, and then a further 10% off the new price. How much do you pay (in ₹)?
22. 22.A study lamp is marked at ₹3160. The shop gives a 20% discount. How much do you pay (in ₹)?
23. 23.Diya puts ₹19700 in a bank at 14% simple interest per year. How much will she have after 4 years (in ₹)?
24. 24.Kabir is 8 years older than Aditya. In 2 years, the sum of their ages will be 50. How old is Aditya now?
25. 25.10 years ago, Kabir’s mother was twice as old as Kabir. The mother is 20 years old now. How old is Kabir now?
26. 26.Karan can finish a job in 13 days and Meera in 5 days. What fraction of the job do they finish if they work together for 1 day? =
27. 27.Aarav and Arjun together finish a job in 3 days. Aarav alone takes 4 days. How many days would Arjun take alone?
28. 28.A town has 800 people. Its population grows by 15%. How many people live there now?
29. 29.A water tank holds 3020 litres. 50% of the water is used. How many litres are left?
30. 30.A watch bought for ₹1180 is sold at a loss of 40%. What is the selling price (in ₹)?
31. 31.What sum of money earns ₹1716 simple interest in 1 year at 12% per year (in ₹)?
32. 32.The average weight of 9 children is 45 kg. One child, who weighs 69 kg, leaves the group. What is the new average weight (in kg)?
33. 33.A study lamp bought for ₹660 is sold at a profit of 10%. What is the selling price (in ₹)?
34. 34.The price of a school bag changes from ₹220 to ₹187. By what percent did it come down?
35. 35.5 years ago, Nisha’s mother was three times as old as Nisha. The mother is 17 years old now. How old is Nisha now?
36. 36.Rahul works twice as fast as Saanvi. Together they finish a job in 3 days. How many days would Saanvi take alone?
37. 37.A town has 1360 people. Its population grows by 30%. How many people live there now?
38. 38.A car runs for 2 hours at 30 km/h and then for 2 hours at 80 km/h. What is its average speed for the whole journey (in km/h)?
39. 39.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
40. 40.A shopkeeper buys a bicycle for ₹1200 and sells it for ₹840. Find the loss percent.

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