Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 622 · 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.If 6 bottles of juice cost ₹96, how much do 18 bottles of juice cost (in ₹)?
2. 2.What is the smallest number you must take away from 459 so that it divides exactly by 7?
3. 3.If 6 kites cost ₹96, how much do 8 kites cost (in ₹)?
4. 4.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 4 or 8.
5. 5.Two tanks hold 450 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
6. 6.Divide ₹140 between Sneha and Meera in the ratio 2 : 5. How much does Meera get (in ₹)?
7. 7.Write 9/20 as a percent.
8. 8.Three temple bells ring every 30, 8 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
9. 9.38 + 6 × 4 − 31 =
10. 10.Find the HCF of 52 and 117.
11. 11.A car goes 144 km on 12 litres of petrol. How far can it go on 32 litres (in km)?
12. 12.Nisha scored 36 marks out of 80 in a test. What percentage did Nisha score?
13. 13.11 painters can paint a school in 12 days. How many days would 4 painters take, working at the same speed?
14. 14.Which is closest to 698 + 303 + 101? (a) 1000 (b) 1100 (c) 1200 (d) 1300
15. 15.Farhan takes 30 seconds and Ishaan 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?
16. 16.A hall floor is 280 cm long and 160 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
17. 17.26.4 ÷ 3 =
18. 18.40 − 21 ÷ 3 × 2 =
19. 19.Which is closest to 202 × 80? (Round each number first.) (a) 1600 (b) 32000 (c) 160000 (d) 16000
20. 20.8 : 3 = 56 : ?
21. 21.The HCF of two numbers is 5 and their LCM is 100. One of the numbers is 20. What is the other number?
22. 22.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 4, 3 or 12.
23. 23.(7 + 16) × 8 − 14 =
24. 24.Which is closest to 295 + 403 + 595? (a) 1200 (b) 1300 (c) 1400 (d) 1500
25. 25.7 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
26. 26.Round 56.51 to one decimal place. =
27. 27.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 8, 10 or 3.
28. 28.Nisha takes 80 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?
29. 29.A car goes 99 km on 9 litres of petrol. How far can it go on 11 litres (in km)?
30. 30.6/7 + 3/4 =
31. 31.What percent of 80 is 52?
32. 32.Divide ₹340 between Kavya and Rohan in the ratio 9 : 8. How much does Kavya get (in ₹)?
33. 33.15% of a number is 9. What is the number?
34. 34.How many factors does 52 have?
35. 35.Write 1/2 as a percent.
36. 36.Round 16682 to the nearest hundred.
37. 37.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
38. 38.The HCF of two numbers is 4 and their LCM is 180. One of the numbers is 20. What is the other number?
39. 39.Which is closest to 504 × 68? (Round each number first.) (a) 3500 (b) 35000 (c) 70000 (d) 350000
40. 40.Two tanks hold 50 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

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