Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 40 · 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 8 kg of rice costs ₹712, how many kg can you buy for ₹534?
2. 2.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
3. 3.If 6 pens cost ₹324, how much do 5 pens cost (in ₹)?
4. 4.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 4, 8 or 15.
5. 5.Write 3/10 as a percent.
6. 6.If 3 kg of rice costs ₹225, how many kg can you buy for ₹825?
7. 7.Round 84192 to the nearest ten.
8. 8.Round 16.32 to one decimal place. =
9. 9.What is the smallest number you must take away from 379 so that it divides exactly by 8?
10. 10.Three temple bells ring every 30, 6 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
11. 11.Three temple bells ring every 4, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
12. 12.If 5 kg of rice costs ₹380, how many kg can you buy for ₹836?
13. 13.21 ÷ 7 × 9 + 23 =
14. 14.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
15. 15.Three temple bells ring every 10, 5 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
16. 16.Divide ₹255 between Manav and Diya in the ratio 3 : 2. How much does Manav get (in ₹)?
17. 17.If 9 pencil boxes cost ₹441, how much do 17 pencil boxes cost (in ₹)?
18. 18.Two tanks hold 45 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
19. 19.Which is closest to 902 × 32? (Round each number first.) (a) 27000 (b) 54000 (c) 2700 (d) 270000
20. 20.A car goes 216 km on 12 litres of petrol. How far can it go on 17 litres (in km)?
21. 21.49 ÷ 7 × 2 + 14 =
22. 22.Which is closest to 702 + 405 + 198? (a) 1200 (b) 1400 (c) 1300 (d) 1500
23. 23.What is the smallest number you must add to 452 so that it divides exactly by 13?
24. 24.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 4.
25. 25.Which is closest to 105 + 896 + 796? (a) 1700 (b) 1900 (c) 2000 (d) 1800
26. 26.Which is closest to 201 × 49? (Round each number first.) (a) 1000 (b) 100000 (c) 20000 (d) 10000
27. 27.3 × (12 − 7) + 54 ÷ 6 =
28. 28.What is 4/5 of 65 km?
29. 29.Which is closest to 297 × 69? (Round each number first.) (a) 42000 (b) 210000 (c) 21000 (d) 2100
30. 30.4 painters can paint a school in 4 days. How many days would 8 painters take, working at the same speed?
31. 31.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 4, 12 or 6.
32. 32.Which is closest to 896 × 38? (Round each number first.) (a) 72000 (b) 360000 (c) 3600 (d) 36000
33. 33.What is 20% of 555?
34. 34.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
35. 35.If 5 kg of rice costs ₹345, how many kg can you buy for ₹276?
36. 36.2/8 − 2/9 =
37. 37.Find the LCM of 42 and 18.
38. 38.Find the HCF of 40 and 25.
39. 39.Which is closest to 403 × 48? (Round each number first.) (a) 20000 (b) 200000 (c) 2000 (d) 40000
40. 40.What is the smallest number you must take away from 497 so that it divides exactly by 3?

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