Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 787 · 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.A town has 4920 people. Its population grows by 15%. How many people live there now?
2. 2.Change 30 m/s into km/h.
3. 3.Aditya’s father is five times as old as Aditya. The sum of their ages is 30 years. How old is Aditya?
4. 4.The simple interest on ₹3500 for 2 years is ₹980. What is the rate of interest (% per year)?
5. 5.A car runs for 4 hours at 43 km/h and then for 4 hours at 37 km/h. What is its average speed for the whole journey (in km/h)?
6. 6.A water tank holds 3380 litres. 40% of the water is used. How many litres are left?
7. 7.A car runs for 1 hour at 58 km/h and then for 3 hours at 54 km/h. What is its average speed for the whole journey (in km/h)?
8. 8.7 years ago, Dev’s mother was twice as old as Dev. The mother is 17 years old now. How old is Dev now?
9. 9.Kabir cycles to his school at 77 km/h and comes back by the same road at 21 km/h. What is his average speed for the whole trip (in km/h)?
10. 10.A price goes up by 30% and then goes up by 5% more. By what percent has it gone up in all? =
11. 11.What sum of money earns ₹1128 simple interest in 4 years at 6% per year (in ₹)?
12. 12.A study lamp is marked at ₹680. The shop gives a 40% discount. How much do you pay (in ₹)?
13. 13.A shop sells an average of 66 kg of sugar a day for 2 days, and then 45 kg a day for the next 5 days. What is the average sale per day for all 7 days (in kg)?
14. 14.Kabir cycles to his school at 20 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)?
15. 15.By selling a watch for ₹110, a shopkeeper makes a loss of 50%. What did the watch cost the shopkeeper (in ₹)?
16. 16.By selling a pair of shoes for ₹930, a shopkeeper makes a profit of 50%. What did the pair of shoes cost the shopkeeper (in ₹)?
17. 17.A table fan is marked at ₹712. The shop takes 50% off, and then a further 25% off the new price. How much do you pay (in ₹)?
18. 18.By selling a bicycle for ₹420, a shopkeeper makes a profit of 5%. What did the bicycle cost the shopkeeper (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹39600 at 5% per year for 2 years (in ₹)?
20. 20.The price of a school bag changes from ₹240 to ₹336. By what percent did it go up?
21. 21.Find the compound interest on ₹31250 at 8% per year for 3 years, added every year (in ₹).
22. 22.Ishaan is 4 years older than Nisha. In 2 years, the sum of their ages will be 64. How old is Nisha now?
23. 23.A study lamp is marked at ₹180. The shop gives a 40% discount. How much do you pay (in ₹)?
24. 24.A shop sells an average of 72 kg of sugar a day for 3 days, and then 45 kg a day for the next 6 days. What is the average sale per day for all 9 days (in kg)?
25. 25.Zoya can finish a job in 19 days and Kabir in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
26. 26.In how many years will ₹11700 earn ₹3510 as simple interest at 15% per year?
27. 27.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
28. 28.4 years ago, Diya’s mother was four times as old as Diya. The mother is 24 years old now. How old is Diya now?
29. 29.Find the amount when ₹37600 is invested at 5% per year compound interest for 2 years (in ₹).
30. 30.A price goes up by 50% and then comes down by 20%. By what percent has it gone up in all? =
31. 31.A price goes up by 30% and then comes down by 5%. By what percent has it gone up in all? =
32. 32.Ananya is 6 years older than Saanvi. In 8 years, the sum of their ages will be 54. How old is Saanvi now?
33. 33.The average weight of 11 children is 40 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
34. 34.A shopkeeper buys a bicycle for ₹860 and sells it for ₹1075. Find the profit percent.
35. 35.A school bag marked at ₹320 is sold for ₹304. What is the discount percent?
36. 36.The simple interest on ₹15900 for 2 years is ₹2226. What is the rate of interest (% per year)?
37. 37.Find the compound interest on ₹22560 at 25% per year for 2 years, added every year (in ₹).
38. 38.Marks of 4 friends in a quiz: 65, 65, 50, 76. What is their average mark?
39. 39.Meera’s father is twice as old as Meera. The sum of their ages is 39 years. How old is the father?
40. 40.The price of a school bag changes from ₹3000 to ₹3150. By what percent did it go up?

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