Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 504 · 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 smallest number bigger than 9 that leaves a remainder of 3 when divided by 8, 4 or 9.
2. 2.What is the smallest number you must take away from 251 so that it divides exactly by 8?
3. 3.What is 4/5 of 15 students?
4. 4.Which is closest to 199 + 202 + 399? (a) 800 (b) 700 (c) 900 (d) 1000
5. 5.Zoya takes 40 seconds and Manav takes 72 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?
6. 6.What is the smallest number you must take away from 940 so that it divides exactly by 6?
7. 7.Which is closest to 300 × 49? (Round each number first.) (a) 150000 (b) 30000 (c) 15000 (d) 1500
8. 8.Three temple bells ring every 6, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
9. 9.Which of these numbers divides exactly by 8? (a) 5098 (b) 2120 (c) 3215 (d) 7650
10. 10.Farhan scored 17 marks out of 50 in a test. What percentage did Farhan score?
11. 11.Three temple bells ring every 12, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
12. 12.Three temple bells ring every 4, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
13. 13.Find the LCM of 4, 11 and 12.
14. 14.Which of these numbers divides exactly by 3? (a) 7197 (b) 6890 (c) 7120 (d) 3794
15. 15.A hostel has enough food for 5 students for 30 days. How many days will the same food last for 6 students?
16. 16.A hall floor is 200 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
17. 17.If 6 kg of rice costs ₹492, how many kg can you buy for ₹410?
18. 18.16 ÷ 2 × 3 + 12 =
19. 19.13 + 8 × 11 − 9 =
20. 20.Which is closest to 799 × 60? (Round each number first.) (a) 96000 (b) 48000 (c) 4800 (d) 480000
21. 21.Which of these numbers divides exactly by 6? (a) 7706 (b) 8146 (c) 6270 (d) 4288
22. 22.Karan takes 50 seconds and Aarav 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?
23. 23.Find the LCM of 12 and 8.
24. 24.The HCF of two numbers is 6 and their LCM is 144. One of the numbers is 48. What is the other number?
25. 25.16 ÷ 4 × 4 + 24 =
26. 26.Find the LCM of 15, 7 and 3.
27. 27.Which is closest to 501 × 69? (Round each number first.) (a) 350000 (b) 70000 (c) 35000 (d) 3500
28. 28.What is the smallest number you must add to 176 so that it divides exactly by 6?
29. 29.(17 + 17) × 3 − 1 =
30. 30.Write 1/10 as a percent.
31. 31.What is 75% of 52?
32. 32.What is 1/5 of ₹10?
33. 33.Find the LCM of 2, 6 and 15.
34. 34.The ratio of boys to girls in a class is 9 : 5. There are 45 boys. How many girls are there?
35. 35.4 : 5 = 24 : ?
36. 36.What is the smallest number you must take away from 357 so that it divides exactly by 4?
37. 37.What percent of 400 is 228?
38. 38.If 2 bottles of juice cost ₹116, how much do 4 bottles of juice cost (in ₹)?
39. 39.Round 26403 to the nearest thousand.
40. 40.Which is closest to 499 × 18? (Round each number first.) (a) 20000 (b) 100000 (c) 10000 (d) 1000

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