Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 527 · 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. 1.12 painters can paint a school in 22 days. How many days would 6 painters take, working at the same speed?
2. 2.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
3. 3.Round 3076 to the nearest hundred.
4. 4.What is the smallest number you must add to 467 so that it divides exactly by 4?
5. 5.9 : 6 = 54 : ?
6. 6.5/7 + 1/4 =
7. 7.Which of these numbers divides exactly by 4? (a) 8510 (b) 3490 (c) 9404 (d) 6731
8. 8.What is the smallest number you must add to 953 so that it divides exactly by 6?
9. 9.6 painters can paint a school in 19 days. How many days would 19 painters take, working at the same speed?
10. 10.Three temple bells ring every 4, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
11. 11.If 2 erasers cost ₹52, how much do 16 erasers cost (in ₹)?
12. 12.Which of these numbers divides exactly by 6? (a) 1765 (b) 2210 (c) 9019 (d) 6132
13. 13.1/3 + 1/2 =
14. 14.What is the smallest number you must take away from 130 so that it divides exactly by 6?
15. 15.Three temple bells ring every 5, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
16. 16.If 3 kg of rice costs ₹261, how many kg can you buy for ₹348?
17. 17.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 4, 15 or 8.
18. 18.Kabir takes 80 seconds and Farhan takes 30 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?
19. 19.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 15 or 4.
20. 20.Round 84487 to the nearest ten.
21. 21.5 painters can paint a school in 8 days. How many days would 10 painters take, working at the same speed?
22. 22.Two tanks hold 35 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
23. 23.Find the HCF of 16 and 12.
24. 24.What is 6/7 of 28 students?
25. 25.Find the LCM of 20 and 24.
26. 26.If 4 kg of rice costs ₹332, how many kg can you buy for ₹747?
27. 27.Aditya takes 60 seconds and Meera takes 48 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.What is the smallest number you must add to 929 so that it divides exactly by 4?
29. 29.What is the smallest number you must add to 284 so that it divides exactly by 3?
30. 30.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
31. 31.22 ÷ 2 × 9 + 8 =
32. 32.Which is closest to 304 + 401 + 797? (a) 1600 (b) 1500 (c) 1400 (d) 1700
33. 33.5/8 − 1/5 =
34. 34.A hostel has enough food for 10 students for 17 days. How many days will the same food last for 17 students?
35. 35.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
36. 36.What percent of 400 is 396?
37. 37.The HCF of two numbers is 6 and their LCM is 60. One of the numbers is 12. What is the other number?
38. 38.Write 1/2 as a percent.
39. 39.37.6 ÷ 8 =
40. 40.What is 30% of 520?

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