Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 555 · 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.(19 + 3) × 7 − 1 =
2. 2.If 3 kg of rice costs ₹108, how many kg can you buy for ₹180?
3. 3.What is the smallest number you must add to 791 so that it divides exactly by 9?
4. 4.Which is closest to 502 × 40? (Round each number first.) (a) 40000 (b) 20000 (c) 200000 (d) 2000
5. 5.Find the LCM of 10 and 6.
6. 6.The HCF of two numbers is 8 and their LCM is 48. One of the numbers is 16. What is the other number?
7. 7.Two tanks hold 400 litres and 250 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
8. 8.What is the smallest number you must add to 577 so that it divides exactly by 7?
9. 9.The ratio of boys to girls in a class is 1 : 7. There are 5 boys. How many girls are there?
10. 10.Two tanks hold 10 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
11. 11.If 11 notebooks cost ₹198, how much do 6 notebooks cost (in ₹)?
12. 12.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
13. 13.Three temple bells ring every 9, 6 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
14. 14.What is the smallest number you must take away from 352 so that it divides exactly by 6?
15. 15.A hall floor is 360 cm long and 315 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
16. 16.Round 54.61 to one decimal place. =
17. 17.6.97 + 8.5 =
18. 18.How many factors does 46 have?
19. 19.Which is closest to 499 × 78? (Round each number first.) (a) 4000 (b) 80000 (c) 400000 (d) 40000
20. 20.Vivaan takes 80 seconds and Priya 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?
21. 21.What percent of 25 is 24?
22. 22.Which is closest to 496 × 59? (Round each number first.) (a) 60000 (b) 300000 (c) 30000 (d) 3000
23. 23.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
24. 24.Which is closest to 101 + 97 + 200? (a) 600 (b) 400 (c) 500 (d) 300
25. 25.If 12 cricket balls cost ₹540, how much do 11 cricket balls cost (in ₹)?
26. 26.Divide ₹49 between Nisha and Zoya in the ratio 1 : 6. How much does Zoya get (in ₹)?
27. 27.Round 59.11 to one decimal place. =
28. 28.If 6 kg of rice costs ₹456, how many kg can you buy for ₹684?
29. 29.Three temple bells ring every 30, 6 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
30. 30.What percent of 40 is 6?
31. 31.What percent of 200 is 46?
32. 32.2/5 + 4/6 =
33. 33.3/11 + 7/8 =
34. 34.Zoya takes 48 seconds and Kabir 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?
35. 35.Three temple bells ring every 5, 15 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
36. 36.7 × (18 − 4) + 10 ÷ 2 =
37. 37.The ratio of boys to girls in a class is 5 : 7. There are 30 boys. How many girls are there?
38. 38.Which of these numbers divides exactly by 8? (a) 3675 (b) 9586 (c) 3784 (d) 4597
39. 39.Aditya scored 8 marks out of 40 in a test. What percentage did Aditya score?
40. 40.2/8 + 4/12 =

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