Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 431 · 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.The average weight of 8 children is 31 kg. One child, who weighs 38 kg, leaves the group. What is the new average weight (in kg)?
2. 2.Marks of 5 friends in a quiz: 86, 84, 63, 68, 89. What is their average mark?
3. 3.Rohan is 2 years older than Priya. In 8 years, the sum of their ages will be 42. How old is Priya now?
4. 4.A price comes down by 5% and then comes down by 5% more. By what percent has it come down in all? =
5. 5.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
6. 6.In 22 years, Kavya will be three times as old as Kavya was 4 years ago. How old is Kavya now?
7. 7.A shop sells an average of 46 kg of sugar a day for 4 days, and then 56 kg a day for the next 4 days. What is the average sale per day for all 8 days (in kg)?
8. 8.The average weight of 11 children is 29 kg. One child, who weighs 49 kg, leaves the group. What is the new average weight (in kg)?
9. 9.A cricket bat is marked at ₹4140. The shop gives a 40% discount. How much do you pay (in ₹)?
10. 10.A cricket bat marked at ₹540 is sold for ₹378. What is the discount percent?
11. 11.The average of 5 numbers is 31. When one more number is added, the average becomes 37. What number was added?
12. 12.A bicycle marked at ₹480 is sold for ₹336. What is the discount percent?
13. 13.Meera’s father is twice as old as Meera. The sum of their ages is 30 years. How old is the father?
14. 14.Kabir can finish a job in 5 days and Sneha in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
15. 15.A car runs for 4 hours at 35 km/h and then for 2 hours at 47 km/h. What is its average speed for the whole journey (in km/h)?
16. 16.A car runs for 2 hours at 23 km/h and then for 1 hour at 50 km/h. What is its average speed for the whole journey (in km/h)?
17. 17.What is the difference between the compound interest and the simple interest on ₹9200 at 25% per year for 2 years (in ₹)?
18. 18.A shop sells 4120 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
19. 19.By selling a watch for ₹1024, a shopkeeper makes a loss of 20%. What did the watch cost the shopkeeper (in ₹)?
20. 20.Zoya can finish a job in 11 days and Arjun in 9 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
21. 21.Pooja and Priya together finish a job in 5 days. Pooja alone takes 10 days. How many days would Priya take alone?
22. 22.A pressure cooker bought for ₹1440 is sold at a loss of 5%. What is the selling price (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
24. 24.The price of a school bag changes from ₹2520 to ₹3276. By what percent did it go up?
25. 25.Saanvi’s father is five times as old as Saanvi. The sum of their ages is 54 years. How old is the father?
26. 26.A water tank holds 1840 litres. 15% of the water is used. How many litres are left?
27. 27.A shop sells 4220 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
28. 28.A study lamp marked at ₹4480 is sold for ₹3584. What is the discount percent?
29. 29.Find the simple interest on ₹2700 at 4% per year for 2 years (in ₹).
30. 30.Ananya works twice as fast as Arjun. Together they finish a job in 3 days. How many days would Arjun take alone?
31. 31.A water tank holds 2200 litres. 50% of the water is used. How many litres are left?
32. 32.Find the simple interest on ₹800 at 4% per year for 4 years (in ₹).
33. 33.Diya’s father is four times as old as Diya. The sum of their ages is 25 years. How old is the father?
34. 34.Kabir can finish a job in 4 days and Meera in 18 days. Kabir works alone for 2 days and then stops. Meera finishes the rest. How many days does Meera take?
35. 35.A price goes up by 50% and then goes up by 15% more. By what percent has it gone up in all? =
36. 36.What is the difference between the compound interest and the simple interest on ₹47200 at 15% per year for 2 years (in ₹)?
37. 37.In 23 years, Ananya will be three times as old as Ananya was 5 years ago. How old is Ananya now?
38. 38.Arjun can finish a job in 20 days and Farhan in 15 days. Arjun works alone for 8 days and then stops. Farhan finishes the rest. How many days does Farhan take?
39. 39.Ananya’s batting average after 5 innings is 48 runs. How many runs must Ananya score in the next innings to raise the average to 51?
40. 40.Find the compound interest on ₹21200 at 10% per year for 2 years, added every year (in ₹).

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