Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 290 · 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.Diya scored 5 marks out of 20 in a test. What percentage did Diya score?
2. 2.Find the HCF of 56 and 21.
3. 3.Three temple bells ring every 5, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
4. 4.Two tanks hold 60 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
5. 5.What percent of 500 is 60?
6. 6.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
7. 7.Which of these numbers divides exactly by 3? (a) 2068 (b) 6042 (c) 3395 (d) 8854
8. 8.What is 1/2 of 6 students?
9. 9.Find the LCM of 48 and 42.
10. 10.1/2 × 5/9 =
11. 11.6.04 + 4.9 =
12. 12.A hall floor is 160 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
13. 13.Which of these numbers divides exactly by 4? (a) 8529 (b) 7063 (c) 3604 (d) 6526
14. 14.If 10 pencil boxes cost ₹300, how much do 13 pencil boxes cost (in ₹)?
15. 15.Two tanks hold 35 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
16. 16.Which of these numbers divides exactly by 9? (a) 3943 (b) 3662 (c) 6066 (d) 6889
17. 17.Arjun takes 50 seconds and Manav 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?
18. 18.Round 62.62 to one decimal place. =
19. 19.Three temple bells ring every 10, 4 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
20. 20.19.2 ÷ 3 =
21. 21.If 8 kg of rice costs ₹504, how many kg can you buy for ₹189?
22. 22.1/2 of 8 + 5 × 4 =
23. 23.Divide ₹418 between Arjun and Rohan in the ratio 8 : 3. How much does Arjun get (in ₹)?
24. 24.A hostel has enough food for 9 students for 12 days. How many days will the same food last for 3 students?
25. 25.10 painters can paint a school in 26 days. How many days would 5 painters take, working at the same speed?
26. 26.What percent of 250 is 45?
27. 27.Three temple bells ring every 5, 20 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
28. 28.If 9 cricket balls cost ₹81, how much do 16 cricket balls cost (in ₹)?
29. 29.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
30. 30.Write 3/50 as a percent.
31. 31.3/4 − 3/8 =
32. 32.What is the smallest number you must add to 311 so that it divides exactly by 11?
33. 33.2/4 + 2/3 =
34. 34.Three temple bells ring every 24, 4 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
35. 35.Find the LCM of 42 and 48.
36. 36.Divide ₹72 between Pooja and Diya in the ratio 3 : 1. How much does Diya get (in ₹)?
37. 37.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 4, 6 or 3.
38. 38.89 − 36 ÷ 6 × 9 =
39. 39.Saanvi takes 30 seconds and Isha 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?
40. 40.9.98 + 1.5 =

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