Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 193 · 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.Three temple bells ring every 10, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
2. 2.6 × (19 − 16) + 80 ÷ 8 =
3. 3.12 : 9 = 60 : ?
4. 4.Which is closest to 396 × 59? (Round each number first.) (a) 24000 (b) 48000 (c) 240000 (d) 2400
5. 5.The ratio of boys to girls in a class is 9 : 7. There are 72 boys. How many girls are there?
6. 6.If 10 cricket balls cost ₹260, how much do 4 cricket balls cost (in ₹)?
7. 7.A hostel has enough food for 2 students for 4 days. How many days will the same food last for 4 students?
8. 8.If 11 pens cost ₹66, how much do 3 pens cost (in ₹)?
9. 9.Find the LCM of 10 and 8.
10. 10.What is the smallest number you must add to 860 so that it divides exactly by 9?
11. 11.Find the LCM of 12 and 18.
12. 12.The HCF of two numbers is 4 and their LCM is 96. One of the numbers is 12. What is the other number?
13. 13.Round 6799 to the nearest hundred.
14. 14.Round 73.91 to one decimal place. =
15. 15.Kavya takes 90 seconds and Pooja 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?
16. 16.A hall floor is 420 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
17. 17.The HCF of two numbers is 7 and their LCM is 504. One of the numbers is 63. What is the other number?
18. 18.Round 57319 to the nearest thousand.
19. 19.Which of these numbers divides exactly by 8? (a) 3145 (b) 1992 (c) 4681 (d) 9826
20. 20.What is 5% of 200?
21. 21.Divide ₹78 between Nisha and Saanvi in the ratio 9 : 4. How much does Nisha get (in ₹)?
22. 22.If 12 pencil boxes cost ₹540, how much do 15 pencil boxes cost (in ₹)?
23. 23.Find the LCM of 48 and 54.
24. 24.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 4 or 3.
25. 25.Which is closest to 908 ÷ 29? (a) 300 (b) 30 (c) 15 (d) 60
26. 26.The HCF of two numbers is 5 and their LCM is 140. One of the numbers is 35. What is the other number?
27. 27.What is the smallest number you must take away from 597 so that it divides exactly by 13?
28. 28.27 − 10 ÷ 2 × 3 =
29. 29.6 : 9 = 12 : ?
30. 30.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 6 or 8.
31. 31.Find the HCF of 18 and 21.
32. 32.A hall floor is 200 cm long and 160 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
33. 33.Which of these numbers divides exactly by 11? (a) 8987 (b) 3194 (c) 1376 (d) 9260
34. 34.What is the smallest number you must take away from 182 so that it divides exactly by 12?
35. 35.Nisha takes 75 seconds and Pooja 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?
36. 36.If 4 pencil boxes cost ₹120, how much do 13 pencil boxes cost (in ₹)?
37. 37.Divide ₹552 between Vivaan and Zoya in the ratio 5 : 7. How much does Zoya get (in ₹)?
38. 38.What is 60% of 130?
39. 39.75% of a number is 201. What is the number?
40. 40.Which of these numbers divides exactly by 3? (a) 4007 (b) 7809 (c) 1543 (d) 6721

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