Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 195 · 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.Find the LCM of 15 and 6.
2. 2.A car goes 108 km on 12 litres of petrol. How far can it go on 22 litres (in km)?
3. 3.Divide ₹160 between Ananya and Ishaan in the ratio 1 : 7. How much does Ishaan get (in ₹)?
4. 4.Two tanks hold 75 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
5. 5.60 ÷ 5 × 8 + 26 =
6. 6.Three temple bells ring every 5, 10 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
7. 7.Two tanks hold 20 litres and 70 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
8. 8.What is 4/9 of 180 km?
9. 9.Rohan takes 80 seconds and Karan takes 36 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?
10. 10.What is the smallest number you must add to 361 so that it divides exactly by 9?
11. 11.What is 30% of 120?
12. 12.Find the LCM of 15 and 25.
13. 13.1/2 + 4/6 =
14. 14.Pooja takes 90 seconds and Karan takes 36 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.What is 80% of 120?
16. 16.Three temple bells ring every 15, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
17. 17.2 : 3 = 8 : ?
18. 18.Two tanks hold 25 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
19. 19.What percent of 20 is 3?
20. 20.The ratio of boys to girls in a class is 5 : 9. There are 45 boys. How many girls are there?
21. 21.Round 94429 to the nearest ten.
22. 22.Find the smallest number bigger than 12 that leaves a remainder of 4 when divided by 5, 10 or 12.
23. 23.A car goes 220 km on 11 litres of petrol. How far can it go on 38 litres (in km)?
24. 24.Aarav takes 48 seconds and Sneha takes 30 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. 25.11 : 7 = 33 : ?
26. 26.What is the smallest number you must add to 757 so that it divides exactly by 3?
27. 27.Divide ₹510 between Manav and Ananya in the ratio 7 : 8. How much does Manav get (in ₹)?
28. 28.Three temple bells ring every 6, 30 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
29. 29.The HCF of two numbers is 3 and their LCM is 216. One of the numbers is 27. What is the other number?
30. 30.49 − 20 ÷ 5 × 7 =
31. 31.Pooja takes 60 seconds and Ananya 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?
32. 32.Which is closest to 198 × 20? (Round each number first.) (a) 400 (b) 8000 (c) 40000 (d) 4000
33. 33.Which is closest to 2091 ÷ 29? (a) 700 (b) 35 (c) 140 (d) 70
34. 34.Which is closest to 799 × 22? (Round each number first.) (a) 1600 (b) 16000 (c) 32000 (d) 160000
35. 35.If 11 cricket balls cost ₹539, how much do 7 cricket balls cost (in ₹)?
36. 36.Find the HCF of 105 and 75.
37. 37.(19 + 9) × 7 − 7 =
38. 38.8.38 + 4.1 =
39. 39.50% of a number is 131. What is the number?
40. 40.The ratio of boys to girls in a class is 2 : 5. There are 8 boys. How many girls are there?

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