Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 973 · 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.What percent of 25 is 9?
2. 2.2 : 9 = 10 : ?
3. 3.(16 + 14) × 3 − 8 =
4. 4.What percent of 50 is 21?
5. 5.Ishaan scored 20 marks out of 80 in a test. What percentage did Ishaan score?
6. 6.Round 38628 to the nearest hundred.
7. 7.Find the LCM of 30 and 24.
8. 8.Which of these numbers divides exactly by 8? (a) 5880 (b) 3962 (c) 6782 (d) 4908
9. 9.Which of these numbers divides exactly by 4? (a) 9699 (b) 1295 (c) 1736 (d) 9886
10. 10.A hall floor is 360 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
11. 11.If 4 mangoes cost ₹224, how much do 12 mangoes cost (in ₹)?
12. 12.Which is closest to 701 × 18? (Round each number first.) (a) 140000 (b) 1400 (c) 28000 (d) 14000
13. 13.What is 5/7 of ₹28?
14. 14.Find the HCF of 25 and 10.
15. 15.Two tanks hold 30 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
16. 16.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
17. 17.If 10 pens cost ₹90, how much do 19 pens cost (in ₹)?
18. 18.Two tanks hold 150 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
19. 19.12 ÷ 3 × 2 + 28 =
20. 20.Divide ₹280 between Rahul and Meera in the ratio 7 : 1. How much does Meera get (in ₹)?
21. 21.If 7 kg of rice costs ₹357, how many kg can you buy for ₹255?
22. 22.6 painters can paint a school in 15 days. How many days would 2 painters take, working at the same speed?
23. 23.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
24. 24.How many factors does 84 have?
25. 25.54 ÷ 6 × 4 + 26 =
26. 26.Two tanks hold 120 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
27. 27.Which of these numbers divides exactly by 3? (a) 1787 (b) 1421 (c) 6021 (d) 5197
28. 28.The ratio of boys to girls in a class is 1 : 2. There are 8 boys. How many girls are there?
29. 29.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?
30. 30.52 − 72 ÷ 9 × 6 =
31. 31.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
32. 32.Priya takes 80 seconds and Nisha 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?
33. 33.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
34. 34.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
35. 35.How many factors does 35 have?
36. 36.Which of these numbers divides exactly by 3? (a) 4948 (b) 2898 (c) 1412 (d) 2614
37. 37.Which of these numbers divides exactly by 6? (a) 4359 (b) 5198 (c) 1202 (d) 7320
38. 38.What is the smallest number you must take away from 108 so that it divides exactly by 13?
39. 39.11 painters can paint a school in 14 days. How many days would 22 painters take, working at the same speed?
40. 40.Two tanks hold 25 litres and 10 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

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