Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 515 · 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.Two tanks hold 105 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
2. 2.Pooja takes 36 seconds and Ishaan 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?
3. 3.What is 30% of 230?
4. 4.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
5. 5.3/11 + 1/2 =
6. 6.1/7 of 70 + 6 × 4 =
7. 7.Which is closest to 298 × 32? (Round each number first.) (a) 18000 (b) 90000 (c) 9000 (d) 900
8. 8.Two tanks hold 105 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
9. 9.Aditya scored 12 marks out of 25 in a test. What percentage did Aditya score?
10. 10.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 6 or 9.
11. 11.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
12. 12.If 2 kg of rice costs ₹94, how many kg can you buy for ₹658?
13. 13.If 7 kg of rice costs ₹196, how many kg can you buy for ₹224?
14. 14.3 : 9 = 12 : ?
15. 15.The HCF of two numbers is 6 and their LCM is 168. One of the numbers is 42. What is the other number?
16. 16.How many factors does 23 have?
17. 17.2/7 of 35 + 9 × 8 =
18. 18.Which is closest to 397 × 80? (Round each number first.) (a) 320000 (b) 3200 (c) 64000 (d) 32000
19. 19.12 : 4 = 108 : ?
20. 20.Three temple bells ring every 8, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
21. 21.The HCF of two numbers is 3 and their LCM is 30. One of the numbers is 15. What is the other number?
22. 22.Three temple bells ring every 15, 12 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
23. 23.Write 49/50 as a percent.
24. 24.4/7 × 11/12 =
25. 25.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 6 or 3.
26. 26.Write 3/10 as a percent.
27. 27.(14 + 8) × 5 − 9 =
28. 28.Three temple bells ring every 4, 8 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
29. 29.11 painters can paint a school in 26 days. How many days would 22 painters take, working at the same speed?
30. 30.Round 82.72 to one decimal place. =
31. 31.56 ÷ 8 × 5 + 7 =
32. 32.2 painters can paint a school in 21 days. How many days would 6 painters take, working at the same speed?
33. 33.Which is closest to 604 × 78? (Round each number first.) (a) 48000 (b) 480000 (c) 4800 (d) 96000
34. 34.What is the smallest number you must take away from 715 so that it divides exactly by 6?
35. 35.2.53 + 4.8 =
36. 36.The HCF of two numbers is 3 and their LCM is 189. One of the numbers is 21. What is the other number?
37. 37.Round 84269 to the nearest ten.
38. 38.The HCF of two numbers is 8 and their LCM is 48. One of the numbers is 16. What is the other number?
39. 39.A car goes 242 km on 11 litres of petrol. How far can it go on 9 litres (in km)?
40. 40.If 2 kg of rice costs ₹134, how many kg can you buy for ₹1005?

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