Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 358 · 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.In 14 years, Rohan will be three times as old as Rohan was 2 years ago. How old is Rohan now?
2. 2.Kabir cycles to his school at 84 km/h and comes back by the same road at 28 km/h. What is his average speed for the whole trip (in km/h)?
3. 3.Pooja is 10 years older than Ananya. In 7 years, the sum of their ages will be 78. How old is Ananya now?
4. 4.A school bag is marked at ₹3080. The shop gives a 25% discount. How much do you pay (in ₹)?
5. 5.The average of 5 numbers is 38. When one more number is added, the average becomes 40. What number was added?
6. 6.What is the difference between the compound interest and the simple interest on ₹36800 at 20% per year for 2 years (in ₹)?
7. 7.Find the simple interest on ₹11300 at 13% per year for 5 years (in ₹).
8. 8.A shopkeeper buys a watch for ₹700 and sells it for ₹490. Find the loss percent.
9. 9.A price goes up by 25% and then goes up by 50% more. By what percent has it gone up in all? =
10. 10.Diya puts ₹16100 in a bank at 10% simple interest per year. How much will she have after 4 years (in ₹)?
11. 11.A cricket bat is marked at ₹4540. The shop gives a 25% discount. How much do you pay (in ₹)?
12. 12.A water tank holds 4260 litres. 5% of the water is used. How many litres are left?
13. 13.A shopkeeper buys a pressure cooker for ₹1440 and sells it for ₹1296. Find the loss percent.
14. 14.A table fan is marked at ₹570. The shop takes 25% off, and then a further 20% off the new price. How much do you pay (in ₹)?
15. 15.A car runs for 1 hour at 37 km/h and then for 2 hours at 76 km/h. What is its average speed for the whole journey (in km/h)?
16. 16.Kabir cycles to his school at 10 km/h and comes back by the same road at 30 km/h. What is his average speed for the whole trip (in km/h)?
17. 17.A table fan marked at ₹4100 is sold for ₹3690. What is the discount percent?
18. 18.A water tank holds 1200 litres. 15% of the water is used. How many litres are left?
19. 19.A pair of shoes is marked at ₹620. The shop gives a 15% discount. How much do you pay (in ₹)?
20. 20.A shop sells an average of 27 kg of sugar a day for 3 days, and then 73 kg a day for the next 3 days. What is the average sale per day for all 6 days (in kg)?
21. 21.Find the amount when ₹16200 is invested at 10% per year compound interest for 2 years (in ₹).
22. 22.Tara can finish a job in 17 days and Meera in 12 days. What fraction of the job do they finish if they work together for 2 days? =
23. 23.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
24. 24.Kavya can finish a job in 18 days and Rohan in 5 days. What fraction of the job do they finish if they work together for 1 day? =
25. 25.A price goes up by 50% and then comes down by 20%. By what percent has it gone up in all? =
26. 26.A school bag is marked at ₹472. The shop takes 50% off, and then a further 50% off the new price. How much do you pay (in ₹)?
27. 27.The average of 9 numbers is 52. When one more number is added, the average becomes 54. What number was added?
28. 28.How many minutes does a car take to go 48 km at 48 km/h?
29. 29.Arjun can finish a job in 26 days and Dev in 30 days. Arjun works alone for 13 days and then stops. Dev finishes the rest. How many days does Dev take?
30. 30.10 years ago, Diya’s mother was four times as old as Diya. The mother is 54 years old now. How old is Diya now?
31. 31.Nisha can finish a job in 7 days and Kavya in 16 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
32. 32.The simple interest on ₹16500 for 3 years is ₹1485. What is the rate of interest (% per year)?
33. 33.The average weight of 7 children is 34 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?
34. 34.A study lamp marked at ₹3760 is sold for ₹3008. What is the discount percent?
35. 35.Change 30 m/s into km/h.
36. 36.Aarav and Farhan together finish a job in 2 days. Aarav alone takes 6 days. How many days would Farhan take alone?
37. 37.A bus runs at 57 km/h. How far does it go in 20 minutes (in km)?
38. 38.Find the simple interest on ₹11400 at 8% per year for 4 years (in ₹).
39. 39.A water tank holds 1840 litres. 5% of the water is used. How many litres are left?
40. 40.The average weight of 10 children is 34 kg. One child, who weighs 52 kg, leaves the group. What is the new average weight (in kg)?

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