Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 154 · 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.Three temple bells ring every 20, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
2. 2.Divide ₹500 between Zoya and Manav in the ratio 1 : 9. How much does Manav get (in ₹)?
3. 3.17 + 3 × 11 − 5 =
4. 4.A hostel has enough food for 4 students for 12 days. How many days will the same food last for 12 students?
5. 5.Find the LCM of 4, 10 and 2.
6. 6.Vivaan takes 80 seconds and Priya takes 90 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?
7. 7.Which is closest to 604 × 60? (Round each number first.) (a) 360000 (b) 72000 (c) 3600 (d) 36000
8. 8.5% of a number is 19. What is the number?
9. 9.90 ÷ 9 × 6 + 12 =
10. 10.A hall floor is 300 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
11. 11.50 + 3 × 8 − 24 =
12. 12.Write 1/10 as a percent.
13. 13.If 12 notebooks cost ₹288, how much do 3 notebooks cost (in ₹)?
14. 14.If 9 kg of rice costs ₹792, how many kg can you buy for ₹1320?
15. 15.How many factors does 39 have?
16. 16.Three temple bells ring every 4, 15 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
17. 17.Which is closest to 2697 ÷ 29? (a) 45 (b) 90 (c) 900 (d) 180
18. 18.81 ÷ 9 × 3 + 21 =
19. 19.Two tanks hold 150 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
20. 20.50% of a number is 192. What is the number?
21. 21.44 + 6 × 10 − 12 =
22. 22.Which of these numbers divides exactly by 11? (a) 4245 (b) 4241 (c) 6017 (d) 6727
23. 23.Ananya scored 28 marks out of 80 in a test. What percentage did Ananya score?
24. 24.2/3 × 2/8 =
25. 25.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
26. 26.72 ÷ 9 × 5 + 5 =
27. 27.A hostel has enough food for 12 students for 13 days. How many days will the same food last for 6 students?
28. 28.Find the LCM of 27 and 6.
29. 29.54.9 ÷ 9 =
30. 30.12 painters can paint a school in 24 days. How many days would 16 painters take, working at the same speed?
31. 31.Kavya takes 45 seconds and Rohan 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 96 km on 12 litres of petrol. How far can it go on 35 litres (in km)?
33. 33.Which is closest to 3009 ÷ 49? (a) 30 (b) 120 (c) 600 (d) 60
34. 34.A car goes 72 km on 4 litres of petrol. How far can it go on 22 litres (in km)?
35. 35.Which is closest to 697 × 92? (Round each number first.) (a) 126000 (b) 630000 (c) 6300 (d) 63000
36. 36.What is 120% of 445?
37. 37.Three temple bells ring every 10, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
38. 38.Which is closest to 1802 ÷ 29? (a) 120 (b) 60 (c) 600 (d) 30
39. 39.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
40. 40.Kavya takes 54 seconds and Diya takes 90 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?

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