Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 454 · 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.A hall floor is 200 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
2. 2.A hall floor is 240 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
3. 3.Write 2/5 as a percent.
4. 4.Which is closest to 4002 ÷ 49? (a) 40 (b) 80 (c) 160 (d) 800
5. 5.What is 1/6 of 24 students?
6. 6.Divide ₹371 between Aditya and Rahul in the ratio 3 : 4. How much does Rahul get (in ₹)?
7. 7.Which of these numbers divides exactly by 6? (a) 9044 (b) 5956 (c) 4980 (d) 4549
8. 8.What is the smallest number you must add to 718 so that it divides exactly by 4?
9. 9.Divide ₹285 between Pooja and Manav in the ratio 2 : 3. How much does Pooja get (in ₹)?
10. 10.A car goes 207 km on 9 litres of petrol. How far can it go on 23 litres (in km)?
11. 11.A hall floor is 120 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
12. 12.Nisha takes 45 seconds and Tara 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?
13. 13.Find the HCF of 63 and 49.
14. 14.1/4 × 1/2 =
15. 15.What is the smallest number you must add to 125 so that it divides exactly by 7?
16. 16.38 − 15 ÷ 5 × 4 =
17. 17.The ratio of boys to girls in a class is 5 : 8. There are 30 boys. How many girls are there?
18. 18.A car goes 60 km on 4 litres of petrol. How far can it go on 23 litres (in km)?
19. 19.5.8 × 4 =
20. 20.What is the smallest number you must take away from 635 so that it divides exactly by 3?
21. 21.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?
22. 22.The HCF of two numbers is 5 and their LCM is 120. One of the numbers is 40. What is the other number?
23. 23.The ratio of boys to girls in a class is 4 : 5. There are 20 boys. How many girls are there?
24. 24.What is the smallest number you must take away from 425 so that it divides exactly by 12?
25. 25.Which of these numbers divides exactly by 4? (a) 2550 (b) 1868 (c) 8842 (d) 4835
26. 26.If 4 mangoes cost ₹232, how much do 8 mangoes cost (in ₹)?
27. 27.Ananya takes 72 seconds and Meera takes 54 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?
28. 28.Find the smallest number bigger than 6 that leaves a remainder of 3 when divided by 5, 6 or 4.
29. 29.Round 68.28 to one decimal place. =
30. 30.Find the smallest number bigger than 10 that leaves a remainder of 4 when divided by 8, 6 or 10.
31. 31.Divide ₹296 between Pooja and Vivaan in the ratio 3 : 5. How much does Pooja get (in ₹)?
32. 32.2/3 − 2/6 =
33. 33.2/3 + 5/8 =
34. 34.What percent of 80 is 64?
35. 35.Round 81673 to the nearest thousand.
36. 36.Find the smallest number bigger than 15 that leaves a remainder of 8 when divided by 15, 12 or 9.
37. 37.1/7 × 1/2 =
38. 38.Find the LCM of 24 and 28.
39. 39.Round 88.54 to one decimal place. =
40. 40.A hall floor is 160 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

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