Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 210 · 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.Change 10 m/s into km/h.
2. 2.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
3. 3.After a 30% discount, a bicycle costs ₹168. What was its marked price (in ₹)?
4. 4.By selling a table fan for ₹667, a shopkeeper makes a profit of 15%. What did the table fan cost the shopkeeper (in ₹)?
5. 5.Sneha’s father is twice as old as Sneha. The sum of their ages is 21 years. How old is the father?
6. 6.The simple interest on ₹16300 for 4 years is ₹2608. What is the rate of interest (% per year)?
7. 7.What sum of money earns ₹78 simple interest in 1 year at 6% per year (in ₹)?
8. 8.A watch is marked at ₹1340. The shop gives a 50% discount. How much do you pay (in ₹)?
9. 9.The average of 4 numbers is 35. When one more number is added, the average becomes 40. What number was added?
10. 10.A bicycle is marked at ₹3400. The shop gives a 40% discount. How much do you pay (in ₹)?
11. 11.A shop sells an average of 67 kg of sugar a day for 4 days, and then 31 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
12. 12.A cricket bat is marked at ₹510. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
13. 13.After a 30% discount, a cricket bat costs ₹70. What was its marked price (in ₹)?
14. 14.The average weight of 7 children is 45 kg. One child, who weighs 51 kg, leaves the group. What is the new average weight (in kg)?
15. 15.Vivaan can finish a job in 17 days and Meera in 8 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
16. 16.A shop sells an average of 22 kg of sugar a day for 4 days, and then 40 kg a day for the next 2 days. What is the average sale per day for all 6 days (in kg)?
17. 17.Find the simple interest on ₹7400 at 8% per year for 1 year (in ₹).
18. 18.The price of a school bag changes from ₹2540 to ₹2413. By what percent did it come down?
19. 19.A shopkeeper buys a school bag for ₹380 and sells it for ₹456. Find the profit percent.
20. 20.A car runs for 1 hour at 70 km/h and then for 1 hour at 30 km/h. What is its average speed for the whole journey (in km/h)?
21. 21.10 years ago, Priya’s mother was four times as old as Priya. The mother is 50 years old now. How old is Priya now?
22. 22.A shopkeeper buys a school bag for ₹900 and sells it for ₹1350. Find the profit percent.
23. 23.By selling a cricket bat for ₹252, a shopkeeper makes a profit of 5%. What did the cricket bat cost the shopkeeper (in ₹)?
24. 24.What sum of money earns ₹4230 simple interest in 3 years at 15% per year (in ₹)?
25. 25.A price comes down by 15% and then comes down by 20% more. By what percent has it come down in all? =
26. 26.What is the difference between the compound interest and the simple interest on ₹30800 at 25% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹42752 at 25% per year for 3 years, added every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
29. 29.Kabir’s father is twice as old as Kabir. The sum of their ages is 30 years. How old is the father?
30. 30.By selling a bicycle for ₹30, a shopkeeper makes a loss of 50%. What did the bicycle cost the shopkeeper (in ₹)?
31. 31.A shopkeeper buys a cricket bat for ₹200 and sells it for ₹160. Find the loss percent.
32. 32.Find the compound interest on ₹15625 at 4% per year for 3 years, added every year (in ₹).
33. 33.Change 108 km/h into metres per second.
34. 34.A car runs for 4 hours at 51 km/h and then for 4 hours at 39 km/h. What is its average speed for the whole journey (in km/h)?
35. 35.After a 20% discount, a table fan costs ₹912. What was its marked price (in ₹)?
36. 36.A pair of shoes is marked at ₹1680. The shop gives a 5% discount. How much do you pay (in ₹)?
37. 37.Marks of 6 friends in a quiz: 83, 82, 68, 69, 68, 86. What is their average mark?
38. 38.A town has 1400 people. Its population grows by 15%. How many people live there now?
39. 39.By selling a pair of shoes for ₹1078, a shopkeeper makes a loss of 30%. What did the pair of shoes cost the shopkeeper (in ₹)?
40. 40.The average of 5 numbers is 43. When one more number is added, the average becomes 46. What number was added?

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