Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 63 · 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 50% and 10%, one after the other, are the same as one discount of what percent? =
2. 2.Find the amount when ₹24000 is invested at 5% per year compound interest for 3 years (in ₹).
3. 3.By selling a study lamp for ₹72, a shopkeeper makes a loss of 10%. What did the study lamp cost the shopkeeper (in ₹)?
4. 4.The simple interest on ₹1500 for 3 years is ₹585. What is the rate of interest (% per year)?
5. 5.Nisha is 10 years older than Isha. In 7 years, the sum of their ages will be 36. How old is Isha now?
6. 6.Find the compound interest on ₹48750 at 4% per year for 2 years, added every year (in ₹).
7. 7.2 years ago, Manav’s mother was four times as old as Manav. The mother is 26 years old now. How old is Manav now?
8. 8.The average weight of 6 children is 38 kg. One child, who weighs 48 kg, leaves the group. What is the new average weight (in kg)?
9. 9.Zoya’s father is three times as old as Zoya. The sum of their ages is 40 years. How old is Zoya?
10. 10.In 25 years, Ishaan will be twice as old as Ishaan was 6 years ago. How old is Ishaan now?
11. 11.Diya puts ₹8200 in a bank at 8% simple interest per year. How much will she have after 4 years (in ₹)?
12. 12.Kabir cycles to his school at 12 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)?
13. 13.Find the simple interest on ₹9300 at 4% per year for 5 years (in ₹).
14. 14.3 years ago, Aarav’s mother was three times as old as Aarav. The mother is 18 years old now. How old is Aarav now?
15. 15.A water tank holds 600 litres. 30% of the water is used. How many litres are left?
16. 16.In 30 years, Aarav will be twice as old as Aarav was 5 years ago. How old is Aarav now?
17. 17.Find the amount when ₹16100 is invested at 10% per year compound interest for 2 years (in ₹).
18. 18.10 years ago, Nisha’s mother was four times as old as Nisha. The mother is 58 years old now. How old is Nisha now?
19. 19.Rahul’s father is four times as old as Rahul. The sum of their ages is 65 years. How old is the father?
20. 20.Aditya can finish a job in 10 days and Meera in 20 days. Aditya works alone for 5 days and then stops. Meera finishes the rest. How many days does Meera take?
21. 21.Find the amount when ₹12704 is invested at 25% per year compound interest for 2 years (in ₹).
22. 22.By selling a pair of shoes for ₹996, a shopkeeper makes a loss of 40%. What did the pair of shoes cost the shopkeeper (in ₹)?
23. 23.The simple interest on ₹6600 for 4 years is ₹2376. What is the rate of interest (% per year)?
24. 24.Saanvi’s batting average after 5 innings is 47 runs. How many runs must Saanvi score in the next innings to raise the average to 49?
25. 25.By selling a watch for ₹483, a shopkeeper makes a profit of 15%. What did the watch cost the shopkeeper (in ₹)?
26. 26.What sum of money earns ₹4480 simple interest in 2 years at 14% per year (in ₹)?
27. 27.A price comes down by 15% and then comes down by 25% more. By what percent has it come down in all? =
28. 28.The average weight of 10 children is 42 kg. One child, who weighs 60 kg, leaves the group. What is the new average weight (in kg)?
29. 29.Pooja works twice as fast as Aditya. Together they finish a job in 2 days. How many days would Aditya take alone?
30. 30.Find the simple interest on ₹15700 at 15% per year for 4 years (in ₹).
31. 31.Kabir cycles to his school at 60 km/h and comes back by the same road at 20 km/h. What is his average speed for the whole trip (in km/h)?
32. 32.Change 108 km/h into metres per second.
33. 33.A price comes down by 50% and then comes down by 20% more. By what percent has it come down in all? =
34. 34.After a 5% discount, a study lamp costs ₹3629. What was its marked price (in ₹)?
35. 35.The price of a school bag changes from ₹1780 to ₹1958. By what percent did it go up?
36. 36.Two discounts of 25% and 25%, one after the other, are the same as one discount of what percent? =
37. 37.By selling a school bag for ₹450, a shopkeeper makes a profit of 50%. What did the school bag cost the shopkeeper (in ₹)?
38. 38.How many minutes does a car take to go 147 km at 30 km/h?
39. 39.Diya puts ₹20000 in a bank at 6% simple interest per year. How much will she have after 3 years (in ₹)?
40. 40.Sneha and Arjun together finish a job in 2 days. Sneha alone takes 3 days. How many days would Arjun take alone?

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