Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 677 · 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.What is 60% of 20?
2. 2.150% of a number is 468. What is the number?
3. 3.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 10, 3 or 15.
4. 4.A hall floor is 400 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
5. 5.10/12 − 1/4 =
6. 6.Round 17.09 to one decimal place. =
7. 7.If 7 bottles of juice cost ₹49, how much do 16 bottles of juice cost (in ₹)?
8. 8.Farhan takes 60 seconds and Arjun 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?
9. 9.The HCF of two numbers is 5 and their LCM is 120. One of the numbers is 15. What is the other number?
10. 10.If 11 notebooks cost ₹143, how much do 8 notebooks cost (in ₹)?
11. 11.What percent of 200 is 158?
12. 12.Which is closest to 901 + 305 + 496? (a) 1800 (b) 1700 (c) 1900 (d) 1600
13. 13.3 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
14. 14.What is 40% of 40?
15. 15.1/8 of 40 + 2 × 4 =
16. 16.A hostel has enough food for 11 students for 28 days. How many days will the same food last for 7 students?
17. 17.A car goes 75 km on 5 litres of petrol. How far can it go on 7 litres (in km)?
18. 18.How many factors does 51 have?
19. 19.If 9 kg of rice costs ₹729, how many kg can you buy for ₹567?
20. 20.Meera takes 36 seconds and Priya 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?
21. 21.What is the smallest number you must take away from 289 so that it divides exactly by 7?
22. 22.2 × (20 − 10) + 60 ÷ 5 =
23. 23.2/7 × 1/2 =
24. 24.Meera takes 80 seconds and Aarav 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?
25. 25.Priya scored 18 marks out of 20 in a test. What percentage did Priya score?
26. 26.What is the smallest number you must add to 755 so that it divides exactly by 6?
27. 27.What percent of 80 is 4?
28. 28.Aditya scored 9 marks out of 25 in a test. What percentage did Aditya score?
29. 29.What is the smallest number you must add to 261 so that it divides exactly by 4?
30. 30.Find the LCM of 4, 2 and 7.
31. 31.5 : 13 = 15 : ?
32. 32.Which of these numbers divides exactly by 4? (a) 7025 (b) 1511 (c) 3872 (d) 9191
33. 33.(14 + 13) × 4 − 9 =
34. 34.Two tanks hold 40 litres and 15 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
35. 35.Which is closest to 300 × 59? (Round each number first.) (a) 18000 (b) 180000 (c) 1800 (d) 36000
36. 36.Three temple bells ring every 15, 8 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
37. 37.1/5 + 3/4 =
38. 38.Round 80.26 to one decimal place. =
39. 39.Two tanks hold 15 litres and 20 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 ₹49?

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