Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 268 · 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.A car goes 30 km on 2 litres of petrol. How far can it go on 26 litres (in km)?
2. 2.Find the LCM of 10 and 4.
3. 3.Three temple bells ring every 18, 24 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
4. 4.Find the LCM of 5, 4 and 9.
5. 5.Three temple bells ring every 15, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
6. 6.What is 1/3 of 78 kg?
7. 7.A car goes 77 km on 7 litres of petrol. How far can it go on 4 litres (in km)?
8. 8.What is the smallest number you must take away from 124 so that it divides exactly by 7?
9. 9.Two tanks hold 70 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
10. 10.Ananya takes 75 seconds and Priya takes 40 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?
11. 11.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
12. 12.Nisha scored 10 marks out of 25 in a test. What percentage did Nisha score?
13. 13.Three temple bells ring every 5, 12 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
14. 14.Karan takes 40 seconds and Priya takes 75 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?
15. 15.Which is closest to 299 + 297 + 601? (a) 1300 (b) 1100 (c) 1400 (d) 1200
16. 16.73.6 ÷ 8 =
17. 17.Find the HCF of 39 and 52.
18. 18.The HCF of two numbers is 7 and their LCM is 392. One of the numbers is 49. What is the other number?
19. 19.Ananya takes 40 seconds and Dev takes 48 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?
20. 20.Which of these numbers divides exactly by 8? (a) 5419 (b) 9192 (c) 3252 (d) 6365
21. 21.The HCF of two numbers is 5 and their LCM is 225. One of the numbers is 25. What is the other number?
22. 22.What is 4/7 of 147 litres?
23. 23.Divide ₹708 between Sneha and Priya in the ratio 5 : 7. How much does Sneha get (in ₹)?
24. 24.What is 4/7 of 14 litres?
25. 25.Zoya scored 26 marks out of 50 in a test. What percentage did Zoya score?
26. 26.Which of these numbers divides exactly by 9? (a) 7299 (b) 6360 (c) 1939 (d) 4615
27. 27.The ratio of boys to girls in a class is 2 : 3. There are 16 boys. How many girls are there?
28. 28.Pooja scored 12 marks out of 20 in a test. What percentage did Pooja score?
29. 29.Which is closest to 203 + 296 + 102? (a) 500 (b) 800 (c) 700 (d) 600
30. 30.If 3 bottles of juice cost ₹99, how much do 5 bottles of juice cost (in ₹)?
31. 31.If 6 kg of rice costs ₹420, how many kg can you buy for ₹350?
32. 32.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 6, 10 or 3.
33. 33.Find the LCM of 30 and 42.
34. 34.What is the smallest number you must add to 610 so that it divides exactly by 12?
35. 35.Write 3/4 as a percent.
36. 36.Find the LCM of 5 and 3.
37. 37.29 + 5 × 8 − 8 =
38. 38.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
39. 39.7.47 + 3.9 =
40. 40.What is 150% of 76?

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