Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 755 · 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 car goes 52 km on 4 litres of petrol. How far can it go on 18 litres (in km)?
2. 2.Find the LCM of 3, 5 and 11.
3. 3.Which is closest to 297 × 39? (Round each number first.) (a) 24000 (b) 12000 (c) 1200 (d) 120000
4. 4.49 ÷ 7 × 2 + 19 =
5. 5.Isha takes 54 seconds and Sneha 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?
6. 6.80.1 ÷ 9 =
7. 7.What is 3/4 of 96 litres?
8. 8.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 9, 15 or 12.
9. 9.What is the smallest number you must take away from 608 so that it divides exactly by 12?
10. 10.Ananya scored 19 marks out of 20 in a test. What percentage did Ananya score?
11. 11.Round 36065 to the nearest thousand.
12. 12.Two tanks hold 405 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
13. 13.Find the LCM of 10 and 14.
14. 14.Saanvi takes 48 seconds and Zoya 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?
15. 15.Divide ₹322 between Rohan and Zoya in the ratio 5 : 9. How much does Rohan get (in ₹)?
16. 16.2/6 − 1/7 =
17. 17.Find the LCM of 6, 2 and 3.
18. 18.Three temple bells ring every 18, 6 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
19. 19.Three temple bells ring every 4, 12 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
20. 20.Two tanks hold 40 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
21. 21.Find the HCF of 24 and 60.
22. 22.Find the LCM of 11, 12 and 3.
23. 23.What is 80% of 95?
24. 24.What is the smallest number you must take away from 742 so that it divides exactly by 8?
25. 25.Divide ₹99 between Karan and Farhan in the ratio 9 : 2. How much does Farhan get (in ₹)?
26. 26.What percent of 500 is 300?
27. 27.Vivaan takes 48 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?
28. 28.1/10 × 4/7 =
29. 29.How many factors does 74 have?
30. 30.Three temple bells ring every 10, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
31. 31.84 ÷ 7 × 3 + 3 =
32. 32.Write 7/10 as a percent.
33. 33.60% of a number is 150. What is the number?
34. 34.110 − 81 ÷ 9 × 8 =
35. 35.Which is closest to 503 × 52? (Round each number first.) (a) 250000 (b) 25000 (c) 50000 (d) 2500
36. 36.If 2 mangoes cost ₹96, how much do 4 mangoes cost (in ₹)?
37. 37.What is the smallest number you must add to 561 so that it divides exactly by 7?
38. 38.Three temple bells ring every 12, 8 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
39. 39.Two tanks hold 210 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
40. 40.What is 3/7 of ₹154?

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