Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 511 · 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.If 7 mangoes cost ₹140, how much do 6 mangoes cost (in ₹)?
2. 2.(2 + 13) × 9 − 20 =
3. 3.Which is closest to 797 × 88? (Round each number first.) (a) 72000 (b) 7200 (c) 720000 (d) 144000
4. 4.What is the smallest number you must add to 109 so that it divides exactly by 12?
5. 5.How many factors does 56 have?
6. 6.The HCF of two numbers is 6 and their LCM is 168. One of the numbers is 42. What is the other number?
7. 7.How many factors does 53 have?
8. 8.(14 + 5) × 8 − 7 =
9. 9.Farhan takes 72 seconds and Rohan 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?
10. 10.Arjun takes 40 seconds and Rohan takes 48 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?
11. 11.What is 1/3 of 66 km?
12. 12.Zoya takes 50 seconds and Meera takes 75 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?
13. 13.If 2 kg of rice costs ₹104, how many kg can you buy for ₹260?
14. 14.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 6 or 10.
15. 15.2 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
16. 16.Write 3/5 as a percent.
17. 17.The HCF of two numbers is 9 and their LCM is 108. One of the numbers is 27. What is the other number?
18. 18.The HCF of two numbers is 5 and their LCM is 75. One of the numbers is 25. What is the other number?
19. 19.Which is closest to 499 × 68? (Round each number first.) (a) 3500 (b) 70000 (c) 35000 (d) 350000
20. 20.Which is closest to 900 + 898 + 897? (a) 2900 (b) 2800 (c) 2700 (d) 2600
21. 21.2.3 × 5 =
22. 22.A car goes 153 km on 9 litres of petrol. How far can it go on 21 litres (in km)?
23. 23.What is the smallest number you must take away from 910 so that it divides exactly by 6?
24. 24.(18 + 19) × 3 − 11 =
25. 25.Which is closest to 1598 ÷ 39? (a) 400 (b) 40 (c) 80 (d) 20
26. 26.Write 1/2 as a percent.
27. 27.50% of a number is 181. What is the number?
28. 28.80% of a number is 208. What is the number?
29. 29.9 × (21 − 3) + 108 ÷ 9 =
30. 30.The ratio of boys to girls in a class is 8 : 1. There are 56 boys. How many girls are there?
31. 31.What is the smallest number you must add to 587 so that it divides exactly by 7?
32. 32.6 : 2 = 30 : ?
33. 33.Rohan takes 45 seconds and Zoya 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?
34. 34.Write 9/25 as a percent.
35. 35.A hostel has enough food for 2 students for 12 days. How many days will the same food last for 8 students?
36. 36.Write 1/10 as a percent.
37. 37.Two tanks hold 270 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
38. 38.Divide ₹125 between Manav and Saanvi in the ratio 3 : 2. How much does Manav get (in ₹)?
39. 39.Which is closest to 705 + 397 + 305? (a) 1500 (b) 1600 (c) 1400 (d) 1300
40. 40.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude