Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 238 · 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. 1.1/9 of 54 + 9 × 8 =
2. 2.Three temple bells ring every 18, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
3. 3.Three temple bells ring every 6, 10 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
4. 4.Divide ₹590 between Farhan and Kavya in the ratio 9 : 1. How much does Kavya get (in ₹)?
5. 5.Two tanks hold 15 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
6. 6.If 3 pencil boxes cost ₹66, how much do 5 pencil boxes cost (in ₹)?
7. 7.If 4 kg of rice costs ₹288, how many kg can you buy for ₹792?
8. 8.How many factors does 27 have?
9. 9.3/5 + 6/10 =
10. 10.17 − 36 ÷ 6 × 2 =
11. 11.Which of these numbers divides exactly by 9? (a) 1023 (b) 1378 (c) 9393 (d) 9720
12. 12.6 × (14 − 6) + 72 ÷ 6 =
13. 13.Vivaan takes 40 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?
14. 14.Three temple bells ring every 18, 4 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
15. 15.What percent of 40 is 10?
16. 16.(18 + 7) × 7 − 9 =
17. 17.Find the LCM of 30 and 12.
18. 18.What is 3/7 of 189 kg?
19. 19.Round 70.94 to one decimal place. =
20. 20.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 6. What is the other number?
21. 21.Which is closest to 501 × 70? (Round each number first.) (a) 350000 (b) 35000 (c) 70000 (d) 3500
22. 22.Which is closest to 2802 ÷ 41? (a) 700 (b) 140 (c) 35 (d) 70
23. 23.Two tanks hold 280 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
24. 24.What is 10% of 110?
25. 25.Karan takes 45 seconds and Arjun takes 50 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?
26. 26.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 6 or 3.
27. 27.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
28. 28.Three temple bells ring every 10, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
29. 29.The ratio of boys to girls in a class is 2 : 3. There are 14 boys. How many girls are there?
30. 30.Write 1/2 as a percent.
31. 31.48 ÷ 8 × 4 + 13 =
32. 32.Which is closest to 602 × 50? (Round each number first.) (a) 30000 (b) 3000 (c) 300000 (d) 60000
33. 33.Which is closest to 2102 ÷ 29? (a) 700 (b) 35 (c) 140 (d) 70
34. 34.1/2 of 6 + 9 × 7 =
35. 35.If 2 kg of rice costs ₹136, how many kg can you buy for ₹408?
36. 36.Find the LCM of 40 and 15.
37. 37.Three temple bells ring every 24, 5 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
38. 38.The ratio of boys to girls in a class is 7 : 2. There are 42 boys. How many girls are there?
39. 39.What is the smallest number you must take away from 183 so that it divides exactly by 4?
40. 40.The ratio of boys to girls in a class is 3 : 8. There are 30 boys. How many girls are there?

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