Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 671 · 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 4940 litres. 10% of the water is used. How many litres are left?
2. 2.Find the simple interest on ₹3200 at 7% per year for 5 years (in ₹).
3. 3.Marks of 4 friends in a quiz: 55, 65, 67, 69. What is their average mark?
4. 4.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
5. 5.The average of 8 numbers is 41. When one more number is added, the average becomes 46. What number was added?
6. 6.In 18 years, Isha will be three times as old as Isha was 4 years ago. How old is Isha now?
7. 7.Diya puts ₹14800 in a bank at 13% simple interest per year. How much will she have after 5 years (in ₹)?
8. 8.After a 15% discount, a study lamp costs ₹918. What was its marked price (in ₹)?
9. 9.Meera is 7 years older than Priya. In 4 years, the sum of their ages will be 63. How old is Priya now?
10. 10.A study lamp marked at ₹2140 is sold for ₹2033. What is the discount percent?
11. 11.Dev works twice as fast as Karan. Together they finish a job in 2 days. How many days would Karan take alone?
12. 12.A study lamp is marked at ₹688. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
13. 13.Find the compound interest on ₹11200 at 15% per year for 2 years, added every year (in ₹).
14. 14.After a 50% discount, a watch costs ₹220. What was its marked price (in ₹)?
15. 15.Nisha can finish a job in 16 days and Priya in 7 days. What fraction of the job do they finish if they work together for 2 days? =
16. 16.By selling a bicycle for ₹2254, a shopkeeper makes a profit of 15%. What did the bicycle cost the shopkeeper (in ₹)?
17. 17.Diya puts ₹4700 in a bank at 10% simple interest per year. How much will she have after 4 years (in ₹)?
18. 18.Find the amount when ₹32000 is invested at 15% per year compound interest for 3 years (in ₹).
19. 19.Farhan is 10 years older than Manav. In 3 years, the sum of their ages will be 60. How old is Manav now?
20. 20.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹16064 at 25% per year for 2 years, added every year (in ₹).
22. 22.By selling a cricket bat for ₹120, a shopkeeper makes a profit of 20%. What did the cricket bat cost the shopkeeper (in ₹)?
23. 23.9 years ago, Vivaan’s mother was four times as old as Vivaan. The mother is 21 years old now. How old is Vivaan now?
24. 24.By selling a watch for ₹1701, a shopkeeper makes a profit of 5%. What did the watch cost the shopkeeper (in ₹)?
25. 25.Vivaan and Isha together finish a job in 4 days. Vivaan alone takes 8 days. How many days would Isha take alone?
26. 26.By selling a pressure cooker for ₹540, a shopkeeper makes a loss of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
27. 27.Arjun’s father is four times as old as Arjun. The sum of their ages is 25 years. How old is Arjun?
28. 28.The price of a school bag changes from ₹900 to ₹945. By what percent did it go up?
29. 29.Marks of 5 friends in a quiz: 50, 43, 65, 63, 44. What is their average mark?
30. 30.A water tank holds 400 litres. 10% of the water is used. How many litres are left?
31. 31.Aditya can finish a job in 10 days and Ishaan in 12 days. What fraction of the job do they finish if they work together for 1 day? =
32. 32.How many minutes does a car take to go 96 km at 40 km/h?
33. 33.Marks of 5 friends in a quiz: 18, 38, 22, 23, 19. What is their average mark?
34. 34.Priya can finish a job in 6 days and Farhan in 30 days. Priya works alone for 5 days and then stops. Farhan finishes the rest. How many days does Farhan take?
35. 35.A bus runs at 74 km/h. How far does it go in 90 minutes (in km)?
36. 36.Change 72 km/h into metres per second.
37. 37.Ananya is 4 years older than Rahul. In 7 years, the sum of their ages will be 58. How old is Rahul now?
38. 38.Pooja and Ananya together finish a job in 5 days. Pooja alone takes 6 days. How many days would Ananya take alone?
39. 39.Find the simple interest on ₹5300 at 6% per year for 1 year (in ₹).
40. 40.3 years ago, Isha’s mother was four times as old as Isha. The mother is 43 years old now. How old is Isha now?

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