Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 827 · 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 15 m/s into km/h.
2. 2.A pair of shoes is marked at ₹3340. The shop gives a 40% discount. How much do you pay (in ₹)?
3. 3.Tara’s father is three times as old as Tara. The sum of their ages is 20 years. How old is the father?
4. 4.Dev can finish a job in 20 days and Farhan in 16 days. What fraction of the job do they finish if they work together for 3 days? =
5. 5.In how many years will ₹700 earn ₹420 as simple interest at 15% per year?
6. 6.Ishaan can finish a job in 8 days and Arjun in 2 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
7. 7.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
8. 8.A shopkeeper buys a pair of shoes for ₹640 and sells it for ₹512. Find the loss percent.
9. 9.A car runs for 1 hour at 59 km/h and then for 2 hours at 71 km/h. What is its average speed for the whole journey (in km/h)?
10. 10.3 years ago, Ishaan’s mother was four times as old as Ishaan. The mother is 31 years old now. How old is Ishaan now?
11. 11.A pressure cooker is marked at ₹2460. The shop gives a 10% discount. How much do you pay (in ₹)?
12. 12.In how many years will ₹3100 earn ₹155 as simple interest at 5% per year?
13. 13.Diya can finish a job in 18 days and Kavya in 27 days. Diya works alone for 16 days and then stops. Kavya finishes the rest. How many days does Kavya take?
14. 14.Karan can finish a job in 24 days and Manav in 14 days. Karan works alone for 12 days and then stops. Manav finishes the rest. How many days does Manav take?
15. 15.A bicycle is marked at ₹1025. The shop takes 20% off, and then a further 10% off the new price. How much do you pay (in ₹)?
16. 16.In 18 years, Aarav will be twice as old as Aarav was 5 years ago. How old is Aarav now?
17. 17.Marks of 6 friends in a quiz: 91, 85, 96, 90, 99, 67. What is their average mark?
18. 18.Find the compound interest on ₹42500 at 4% per year for 2 years, added every year (in ₹).
19. 19.The average weight of 8 children is 34 kg. One child, who weighs 55 kg, leaves the group. What is the new average weight (in kg)?
20. 20.In 16 years, Ananya will be three times as old as Ananya was 4 years ago. How old is Ananya now?
21. 21.How many minutes does a car take to go 135 km at 45 km/h?
22. 22.Two discounts of 20% and 10%, one after the other, are the same as one discount of what percent? =
23. 23.A bicycle bought for ₹60 is sold at a profit of 25%. What is the selling price (in ₹)?
24. 24.Find the amount when ₹15625 is invested at 8% per year compound interest for 3 years (in ₹).
25. 25.A water tank holds 1600 litres. 10% of the water is used. How many litres are left?
26. 26.Change 5 m/s into km/h.
27. 27.Find the simple interest on ₹4800 at 6% per year for 1 year (in ₹).
28. 28.A study lamp bought for ₹1180 is sold at a loss of 15%. What is the selling price (in ₹)?
29. 29.How many minutes does a car take to go 66 km at 30 km/h?
30. 30.A shopkeeper buys a bicycle for ₹1480 and sells it for ₹1258. Find the loss percent.
31. 31.By selling a study lamp for ₹1250, a shopkeeper makes a profit of 25%. What did the study lamp cost the shopkeeper (in ₹)?
32. 32.The price of a school bag changes from ₹3860 to ₹2702. By what percent did it come down?
33. 33.Ananya’s batting average after 7 innings is 30 runs. How many runs must Ananya score in the next innings to raise the average to 31?
34. 34.The price of a bicycle is ₹1040. It goes up by 5%. What is the new price (in ₹)?
35. 35.A shop sells an average of 49 kg of sugar a day for 2 days, and then 79 kg a day for the next 3 days. What is the average sale per day for all 5 days (in kg)?
36. 36.The average weight of 6 children is 42 kg. One child, who weighs 47 kg, leaves the group. What is the new average weight (in kg)?
37. 37.How many minutes does a car take to go 108 km at 40 km/h?
38. 38.Find the amount when ₹8000 is invested at 5% per year compound interest for 3 years (in ₹).
39. 39.Marks of 6 friends in a quiz: 35, 48, 50, 35, 36, 42. What is their average mark?
40. 40.A school bag bought for ₹920 is sold at a loss of 5%. What is the selling price (in ₹)?

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