Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 451 · 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 4 hours at 39 km/h and then for 4 hours at 23 km/h. What is its average speed for the whole journey (in km/h)?
2. 2.A town has 2700 people. Its population grows by 5%. How many people live there now?
3. 3.A watch is marked at ₹420. The shop takes 50% off, and then a further 20% off the new price. How much do you pay (in ₹)?
4. 4.Change 30 m/s into km/h.
5. 5.Pooja can finish a job in 11 days and Saanvi in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
6. 6.A water tank holds 200 litres. 25% of the water is used. How many litres are left?
7. 7.Marks of 5 friends in a quiz: 70, 60, 83, 57, 75. What is their average mark?
8. 8.Vivaan and Priya together finish a job in 20 days. Vivaan alone takes 28 days. How many days would Priya take alone?
9. 9.Kabir cycles to his school at 84 km/h and comes back by the same road at 60 km/h. What is his average speed for the whole trip (in km/h)?
10. 10.By selling a study lamp for ₹160, a shopkeeper makes a loss of 50%. What did the study lamp cost the shopkeeper (in ₹)?
11. 11.A car runs for 3 hours at 33 km/h and then for 2 hours at 58 km/h. What is its average speed for the whole journey (in km/h)?
12. 12.A water tank holds 80 litres. 40% of the water is used. How many litres are left?
13. 13.Isha’s batting average after 14 innings is 22 runs. How many runs must Isha score in the next innings to raise the average to 23?
14. 14.A watch marked at ₹3460 is sold for ₹2941. What is the discount percent?
15. 15.In 20 years, Kavya will be three times as old as Kavya was 6 years ago. How old is Kavya now?
16. 16.Vivaan and Rahul together finish a job in 3 days. Vivaan alone takes 4 days. How many days would Rahul take alone?
17. 17.Tara is 2 years older than Ananya. In 10 years, the sum of their ages will be 44. How old is Ananya now?
18. 18.In 26 years, Rohan will be twice as old as Rohan was 5 years ago. How old is Rohan now?
19. 19.Arjun can finish a job in 4 days and Ananya in 22 days. Arjun works alone for 2 days and then stops. Ananya finishes the rest. How many days does Ananya take?
20. 20.Kabir cycles to his school at 60 km/h and comes back by the same road at 20 km/h. What is his average speed for the whole trip (in km/h)?
21. 21.What is the difference between the compound interest and the simple interest on ₹35600 at 5% per year for 2 years (in ₹)?
22. 22.The average of 7 numbers is 51. When one more number is added, the average becomes 54. What number was added?
23. 23.In 18 years, Aarav will be twice as old as Aarav was 3 years ago. How old is Aarav now?
24. 24.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
25. 25.The price of a school bag changes from ₹1860 to ₹1767. By what percent did it come down?
26. 26.In 28 years, Meera will be three times as old as Meera was 4 years ago. How old is Meera now?
27. 27.Sneha can finish a job in 4 days and Isha in 28 days. Sneha works alone for 1 day and then stops. Isha finishes the rest. How many days does Isha take?
28. 28.Diya’s father is four times as old as Diya. The sum of their ages is 30 years. How old is Diya?
29. 29.What is the difference between the compound interest and the simple interest on ₹26600 at 20% per year for 2 years (in ₹)?
30. 30.Find the simple interest on ₹17200 at 5% per year for 1 year (in ₹).
31. 31.In how many years will ₹800 earn ₹64 as simple interest at 2% per year?
32. 32.A water tank holds 600 litres. 5% of the water is used. How many litres are left?
33. 33.Diya puts ₹5200 in a bank at 12% simple interest per year. How much will she have after 2 years (in ₹)?
34. 34.After a 40% discount, a bicycle costs ₹1272. What was its marked price (in ₹)?
35. 35.By selling a watch for ₹1140, a shopkeeper makes a profit of 50%. What did the watch cost the shopkeeper (in ₹)?
36. 36.A price comes down by 20% and then comes down by 10% more. By what percent has it come down in all? =
37. 37.In how many years will ₹17200 earn ₹2580 as simple interest at 15% per year?
38. 38.By selling a cricket bat for ₹1278, a shopkeeper makes a loss of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
39. 39.Two discounts of 10% and 25%, one after the other, are the same as one discount of what percent? =
40. 40.5 years ago, Rahul’s mother was twice as old as Rahul. The mother is 27 years old now. How old is Rahul now?

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