Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 61 · 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.Two discounts of 10% and 25%, one after the other, are the same as one discount of what percent? =
2. 2.Dev works three times as fast as Arjun. Together they finish a job in 3 days. How many days would Arjun take alone?
3. 3.Manav can finish a job in 6 days and Aarav in 5 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
4. 4.Marks of 5 friends in a quiz: 16, 24, 43, 39, 33. What is their average mark?
5. 5.In 25 years, Rahul will be twice as old as Rahul was 6 years ago. How old is Rahul now?
6. 6.Find the simple interest on ₹12200 at 14% per year for 3 years (in ₹).
7. 7.In how many years will ₹8700 earn ₹435 as simple interest at 5% per year?
8. 8.A study lamp is marked at ₹4660. The shop gives a 50% discount. How much do you pay (in ₹)?
9. 9.Farhan can finish a job in 15 days and Saanvi in 18 days. What fraction of the job do they finish if they work together for 2 days? =
10. 10.Zoya works three times as fast as Rohan. Together they finish a job in 3 days. How many days would Rohan take alone?
11. 11.The average of 8 numbers is 43. When one more number is added, the average becomes 49. What number was added?
12. 12.Rahul and Ananya together finish a job in 2 days. Rahul alone takes 6 days. How many days would Ananya take alone?
13. 13.A water tank holds 3840 litres. 25% of the water is used. How many litres are left?
14. 14.After a 5% discount, a pair of shoes costs ₹361. What was its marked price (in ₹)?
15. 15.Find the amount when ₹43675 is invested at 20% per year compound interest for 2 years (in ₹).
16. 16.9 years ago, Vivaan’s mother was four times as old as Vivaan. The mother is 37 years old now. How old is Vivaan now?
17. 17.Kabir can finish a job in 13 days and Manav in 5 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
18. 18.The price of a school bag changes from ₹1640 to ₹1804. By what percent did it go up?
19. 19.A study lamp marked at ₹960 is sold for ₹672. What is the discount percent?
20. 20.A school bag is marked at ₹950. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
21. 21.Change 35 m/s into km/h.
22. 22.The price of a school bag changes from ₹1420 to ₹1207. By what percent did it come down?
23. 23.2 years ago, Karan’s mother was three times as old as Karan. The mother is 29 years old now. How old is Karan now?
24. 24.The average weight of 6 children is 30 kg. One child, who weighs 40 kg, leaves the group. What is the new average weight (in kg)?
25. 25.Change 10 m/s into km/h.
26. 26.After a 30% discount, a watch costs ₹938. What was its marked price (in ₹)?
27. 27.Kavya works twice as fast as Rohan. Together they finish a job in 5 days. How many days would Rohan take alone?
28. 28.A shopkeeper buys a bicycle for ₹1820 and sells it for ₹1092. Find the loss percent.
29. 29.By selling a bicycle for ₹1200, a shopkeeper makes a profit of 50%. What did the bicycle cost the shopkeeper (in ₹)?
30. 30.Change 90 km/h into metres per second.
31. 31.Find the compound interest on ₹6000 at 5% per year for 2 years, added every year (in ₹).
32. 32.Pooja can finish a job in 9 days and Isha in 4 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
33. 33.A water tank holds 300 litres. 50% of the water is used. How many litres are left?
34. 34.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
35. 35.The average weight of 6 children is 31 kg. One child, who weighs 36 kg, leaves the group. What is the new average weight (in kg)?
36. 36.A shop sells an average of 65 kg of sugar a day for 6 days, and then 26 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
37. 37.A cricket bat bought for ₹1140 is sold at a loss of 40%. What is the selling price (in ₹)?
38. 38.In 24 years, Aditya will be three times as old as Aditya was 2 years ago. How old is Aditya now?
39. 39.By selling a study lamp for ₹1120, a shopkeeper makes a loss of 30%. What did the study lamp cost the shopkeeper (in ₹)?
40. 40.Kabir cycles to his school at 10 km/h and comes back by the same road at 40 km/h. What is his average speed for the whole trip (in km/h)?

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