Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 642 · 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. 1.40% of a number is 102. What is the number?
2. 2.If 11 kites cost ₹462, how much do 17 kites cost (in ₹)?
3. 3.Which of these numbers divides exactly by 3? (a) 6555 (b) 3386 (c) 7277 (d) 2414
4. 4.If 4 bottles of juice cost ₹228, how much do 18 bottles of juice cost (in ₹)?
5. 5.Which of these numbers divides exactly by 9? (a) 9328 (b) 4338 (c) 5867 (d) 1175
6. 6.50% of a number is 215. What is the number?
7. 7.How many factors does 13 have?
8. 8.The ratio of boys to girls in a class is 4 : 7. There are 12 boys. How many girls are there?
9. 9.What is the smallest number you must take away from 239 so that it divides exactly by 7?
10. 10.If 5 kg of rice costs ₹225, how many kg can you buy for ₹90?
11. 11.Round 20412 to the nearest thousand.
12. 12.Saanvi takes 40 seconds and Diya 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?
13. 13.What percent of 50 is 25?
14. 14.1/2 × 4/7 =
15. 15.11 : 7 = 77 : ?
16. 16.12% of a number is 21. What is the number?
17. 17.3/4 × 2/11 =
18. 18.If 12 pens cost ₹288, how much do 10 pens cost (in ₹)?
19. 19.What percent of 40 is 4?
20. 20.12 painters can paint a school in 25 days. How many days would 10 painters take, working at the same speed?
21. 21.2/4 × 1/6 =
22. 22.38 + 11 × 12 − 11 =
23. 23.Find the LCM of 2, 11 and 9.
24. 24.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
25. 25.30 − 32 ÷ 4 × 2 =
26. 26.Find the LCM of 16 and 20.
27. 27.A car goes 216 km on 9 litres of petrol. How far can it go on 8 litres (in km)?
28. 28.2 : 6 = 4 : ?
29. 29.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 4 or 5.
30. 30.What is 2/7 of 84 km?
31. 31.Meera takes 60 seconds and Rahul takes 40 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?
32. 32.A car goes 264 km on 12 litres of petrol. How far can it go on 37 litres (in km)?
33. 33.How many factors does 28 have?
34. 34.Find the HCF of 15 and 20.
35. 35.120% of a number is 366. What is the number?
36. 36.What is 150% of 36?
37. 37.1/2 of 20 + 4 × 2 =
38. 38.Which is closest to 897 + 497 + 299? (a) 1800 (b) 1700 (c) 1900 (d) 1600
39. 39.16.8 ÷ 7 =
40. 40.If 2 pens cost ₹54, how much do 12 pens cost (in ₹)?

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