Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 682 · 40 questions

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

1. 1.Two tanks hold 25 litres and 10 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
2. 2.The ratio of boys to girls in a class is 3 : 2. There are 9 boys. How many girls are there?
3. 3.Divide ₹60 between Farhan and Dev in the ratio 4 : 1. How much does Dev get (in ₹)?
4. 4.The HCF of two numbers is 8 and their LCM is 224. One of the numbers is 32. What is the other number?
5. 5.Divide ₹198 between Isha and Aarav in the ratio 4 : 7. How much does Aarav get (in ₹)?
6. 6.If 8 mangoes cost ₹384, how much do 4 mangoes cost (in ₹)?
7. 7.If 4 bottles of juice cost ₹120, how much do 15 bottles of juice cost (in ₹)?
8. 8.Farhan scored 9 marks out of 25 in a test. What percentage did Farhan score?
9. 9.(2 + 10) × 5 − 30 =
10. 10.Three temple bells ring every 9, 4 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
11. 11.Priya takes 72 seconds and Diya takes 90 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
12. 12.If 2 kg of rice costs ₹68, how many kg can you buy for ₹476?
13. 13.If 2 cricket balls cost ₹110, how much do 5 cricket balls cost (in ₹)?
14. 14.Write 9/20 as a percent.
15. 15.If 7 kg of rice costs ₹560, how many kg can you buy for ₹880?
16. 16.If 3 kg of rice costs ₹120, how many kg can you buy for ₹440?
17. 17.(8 + 17) × 5 − 21 =
18. 18.Find the LCM of 4, 15 and 3.
19. 19.How many factors does 28 have?
20. 20.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
21. 21.The ratio of boys to girls in a class is 2 : 5. There are 18 boys. How many girls are there?
22. 22.26.7 ÷ 3 =
23. 23.What percent of 200 is 162?
24. 24.Tara takes 80 seconds and Farhan takes 60 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
25. 25.What is the smallest number you must take away from 427 so that it divides exactly by 8?
26. 26.A car goes 48 km on 6 litres of petrol. How far can it go on 9 litres (in km)?
27. 27.A hostel has enough food for 2 students for 9 days. How many days will the same food last for 3 students?
28. 28.2/11 × 7/9 =
29. 29.6/8 − 2/3 =
30. 30.A car goes 48 km on 2 litres of petrol. How far can it go on 16 litres (in km)?
31. 31.Find the HCF of 56 and 63.
32. 32.Kavya takes 48 seconds and Aarav takes 80 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
33. 33.If 8 kg of rice costs ₹312, how many kg can you buy for ₹78?
34. 34.Find the LCM of 5 and 9.
35. 35.Three temple bells ring every 8, 4 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
36. 36.Round 87162 to the nearest hundred.
37. 37.A hall floor is 125 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
38. 38.Isha scored 68 marks out of 80 in a test. What percentage did Isha score?
39. 39.Kabir takes 30 seconds and Arjun takes 45 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
40. 40.Find the HCF of 25 and 30.

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