Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 396 · 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 36 km/h into metres per second.
2. 2.By selling a table fan for ₹1044, a shopkeeper makes a loss of 40%. What did the table fan cost the shopkeeper (in ₹)?
3. 3.A pair of shoes bought for ₹60 is sold at a loss of 25%. What is the selling price (in ₹)?
4. 4.A shopkeeper buys a school bag for ₹560 and sells it for ₹644. Find the profit percent.
5. 5.How many minutes does a car take to go 143 km at 44 km/h?
6. 6.What sum of money earns ₹410 simple interest in 1 year at 10% per year (in ₹)?
7. 7.6 years ago, Isha’s mother was twice as old as Isha. The mother is 30 years old now. How old is Isha now?
8. 8.The average weight of 9 children is 28 kg. One child, who weighs 44 kg, leaves the group. What is the new average weight (in kg)?
9. 9.A table fan is marked at ₹640. The shop takes 50% off, and then a further 10% off the new price. How much do you pay (in ₹)?
10. 10.A price comes down by 5% and then comes down by 15% more. By what percent has it come down in all? =
11. 11.Diya puts ₹12000 in a bank at 6% simple interest per year. How much will she have after 4 years (in ₹)?
12. 12.Two discounts of 10% and 10%, one after the other, are the same as one discount of what percent? =
13. 13.Marks of 6 friends in a quiz: 42, 66, 48, 57, 49, 62. What is their average mark?
14. 14.Meera can finish a job in 27 days and Dev in 6 days. Meera works alone for 9 days and then stops. Dev finishes the rest. How many days does Dev take?
15. 15.A shopkeeper buys a watch for ₹200 and sells it for ₹150. Find the loss percent.
16. 16.Find the amount when ₹16000 is invested at 15% per year compound interest for 3 years (in ₹).
17. 17.8 years ago, Arjun’s mother was twice as old as Arjun. The mother is 20 years old now. How old is Arjun now?
18. 18.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
19. 19.Kabir can finish a job in 16 days and Diya in 12 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
20. 20.Diya can finish a job in 6 days and Rahul in 24 days. Diya works alone for 5 days and then stops. Rahul finishes the rest. How many days does Rahul take?
21. 21.Aarav can finish a job in 20 days and Rohan in 14 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
22. 22.Kabir cycles to his school at 15 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)?
23. 23.Change 108 km/h into metres per second.
24. 24.Find the simple interest on ₹8000 at 4% per year for 2 years (in ₹).
25. 25.A town has 2960 people. Its population grows by 20%. How many people live there now?
26. 26.A town has 2100 people. Its population grows by 5%. How many people live there now?
27. 27.Farhan is 9 years older than Saanvi. In 2 years, the sum of their ages will be 25. How old is Saanvi now?
28. 28.Diya is 3 years older than Farhan. In 3 years, the sum of their ages will be 33. How old is Farhan now?
29. 29.Farhan’s father is four times as old as Farhan. The sum of their ages is 65 years. How old is Farhan?
30. 30.Kabir is 7 years older than Ananya. In 4 years, the sum of their ages will be 63. How old is Ananya now?
31. 31.Find the amount when ₹9200 is invested at 5% per year compound interest for 2 years (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹12400 at 20% per year for 2 years (in ₹)?
33. 33.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
34. 34.A study lamp marked at ₹480 is sold for ₹360. What is the discount percent?
35. 35.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
36. 36.A shop sells an average of 80 kg of sugar a day for 6 days, and then 20 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
37. 37.The price of a school bag changes from ₹1300 to ₹1690. By what percent did it go up?
38. 38.Rohan is 9 years older than Ishaan. In 5 years, the sum of their ages will be 41. How old is Ishaan now?
39. 39.The simple interest on ₹11600 for 3 years is ₹1044. What is the rate of interest (% per year)?
40. 40.A water tank holds 3420 litres. 30% of the water is used. How many litres are left?

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