Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 872 · 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.Round 21.66 to one decimal place. =
2. 2.Ananya takes 72 seconds and Isha 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?
3. 3.Round 58264 to the nearest hundred.
4. 4.18 ÷ 2 × 8 + 3 =
5. 5.Round 84.61 to one decimal place. =
6. 6.Find the LCM of 6 and 27.
7. 7.36 ÷ 3 × 9 + 30 =
8. 8.The ratio of boys to girls in a class is 9 : 5. There are 27 boys. How many girls are there?
9. 9.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
10. 10.Which of these numbers divides exactly by 11? (a) 9226 (b) 1925 (c) 9954 (d) 9686
11. 11.What is the smallest number you must add to 138 so that it divides exactly by 13?
12. 12.3.1 × 9 =
13. 13.A car goes 110 km on 10 litres of petrol. How far can it go on 24 litres (in km)?
14. 14.Divide ₹400 between Kavya and Ishaan in the ratio 3 : 5. How much does Kavya get (in ₹)?
15. 15.The HCF of two numbers is 3 and their LCM is 72. One of the numbers is 9. What is the other number?
16. 16.25 ÷ 5 × 7 + 11 =
17. 17.A car goes 55 km on 5 litres of petrol. How far can it go on 9 litres (in km)?
18. 18.What is 15% of 340?
19. 19.Two tanks hold 70 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
20. 20.The ratio of boys to girls in a class is 9 : 4. There are 54 boys. How many girls are there?
21. 21.Two tanks hold 120 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
22. 22.Saanvi 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?
23. 23.2 × (17 − 15) + 18 ÷ 3 =
24. 24.How many factors does 14 have?
25. 25.Find the LCM of 35 and 15.
26. 26.Divide ₹290 between Isha and Pooja in the ratio 3 : 2. How much does Isha get (in ₹)?
27. 27.Divide ₹400 between Rahul and Aarav in the ratio 9 : 7. How much does Rahul get (in ₹)?
28. 28.A hostel has enough food for 9 students for 18 days. How many days will the same food last for 6 students?
29. 29.Two tanks hold 90 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
30. 30.Which of these numbers divides exactly by 4? (a) 6216 (b) 9843 (c) 6951 (d) 1991
31. 31.A car goes 216 km on 12 litres of petrol. How far can it go on 5 litres (in km)?
32. 32.Three temple bells ring every 8, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
33. 33.What is 80% of 435?
34. 34.What is the smallest number you must take away from 769 so that it divides exactly by 8?
35. 35.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 4, 10 or 8.
36. 36.If 5 mangoes cost ₹40, how much do 10 mangoes cost (in ₹)?
37. 37.60 ÷ 5 × 6 + 8 =
38. 38.10 painters can paint a school in 7 days. How many days would 5 painters take, working at the same speed?
39. 39.1/2 of 12 + 8 × 3 =
40. 40.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 4, 3 or 8.

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