Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 972 · 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.The HCF of two numbers is 4 and their LCM is 96. One of the numbers is 12. What is the other number?
2. 2.Which of these numbers divides exactly by 11? (a) 1942 (b) 7623 (c) 6854 (d) 1306
3. 3.7/8 of 16 + 2 × 5 =
4. 4.2/8 + 2/7 =
5. 5.Three temple bells ring every 15, 12 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
6. 6.The ratio of boys to girls in a class is 7 : 1. There are 56 boys. How many girls are there?
7. 7.Divide ₹85 between Priya and Karan in the ratio 9 : 8. How much does Priya get (in ₹)?
8. 8.A hall floor is 300 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
9. 9.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 6, 12 or 5.
10. 10.53 − 12 ÷ 3 × 6 =
11. 11.Find the smallest number bigger than 15 that leaves a remainder of 8 when divided by 15, 12 or 9.
12. 12.What is the smallest number you must take away from 705 so that it divides exactly by 12?
13. 13.8 × (21 − 17) + 40 ÷ 5 =
14. 14.What is 4/5 of ₹115?
15. 15.Which is closest to 1995 ÷ 51? (a) 20 (b) 80 (c) 400 (d) 40
16. 16.Zoya scored 15 marks out of 25 in a test. What percentage did Zoya score?
17. 17.Find the HCF of 8 and 10.
18. 18.How many factors does 32 have?
19. 19.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 3, 5 or 9.
20. 20.6 painters can paint a school in 6 days. How many days would 12 painters take, working at the same speed?
21. 21.Divide ₹476 between Kavya and Saanvi in the ratio 9 : 8. How much does Kavya get (in ₹)?
22. 22.Two tanks hold 70 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
23. 23.41 − 35 ÷ 7 × 3 =
24. 24.Find the HCF of 36 and 60.
25. 25.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
26. 26.Two tanks hold 135 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
27. 27.2/3 + 1/12 =
28. 28.12% of a number is 12. What is the number?
29. 29.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
30. 30.Which is closest to 2692 ÷ 31? (a) 900 (b) 90 (c) 180 (d) 45
31. 31.Divide ₹190 between Sneha and Ananya in the ratio 9 : 1. How much does Ananya get (in ₹)?
32. 32.9 × (15 − 3) + 56 ÷ 7 =
33. 33.34 + 2 × 5 − 30 =
34. 34.Priya takes 75 seconds and Karan 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?
35. 35.What percent of 20 is 15?
36. 36.What is the smallest number you must take away from 426 so that it divides exactly by 8?
37. 37.Two tanks hold 50 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
38. 38.(9 + 5) × 8 − 19 =
39. 39.Three temple bells ring every 18, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
40. 40.Which is closest to 497 × 21? (Round each number first.) (a) 20000 (b) 10000 (c) 1000 (d) 100000

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