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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 457 · 40 questions
TalentJR

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?

NameDateTime takenScore ___ / 40
  1. 1.9 : 6 = 81 : ?
  2. 2.A hostel has enough food for 6 students for 6 days. How many days will the same food last for 4 students?
  3. 3.Two tanks hold 90 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.A hostel has enough food for 2 students for 27 days. How many days will the same food last for 9 students?
  5. 5.Which is closest to 897 × 30? (Round each number first.) (a) 2700 (b) 270000 (c) 54000 (d) 27000
  6. 6.Write 1/2 as a percent.
  7. 7.If 6 kites cost ₹138, how much do 7 kites cost (in ₹)?
  8. 8.Find the LCM of 16 and 36.
  9. 9.Divide ₹315 between Farhan and Aarav in the ratio 4 : 3. How much does Farhan get (in ₹)?
  10. 10.50 ÷ 5 × 3 + 15 =
  11. 11.Which of these numbers divides exactly by 9? (a) 4258 (b) 4815 (c) 2640 (d) 8431
  12. 12.What is the smallest number you must add to 883 so that it divides exactly by 6?
  13. 13.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 8 or 6.
  14. 14.Which is closest to 900 + 497 + 895? (a) 2200 (b) 2500 (c) 2300 (d) 2400
  15. 15.46.2 ÷ 7 =
  16. 16.A hostel has enough food for 8 students for 8 days. How many days will the same food last for 16 students?
  17. 17.Find the HCF of 60 and 50.
  18. 18.2.64 + 3.9 =
  19. 19.What is the smallest number you must take away from 114 so that it divides exactly by 8?
  20. 20.Which is closest to 3995 ÷ 49? (a) 40 (b) 80 (c) 800 (d) 160
  21. 21.Round 69.19 to one decimal place. =
  22. 22.3/11 − 1/5 =
  23. 23.7/8 − 1/2 =
  24. 24.25% of a number is 134. What is the number?
  25. 25.The ratio of boys to girls in a class is 1 : 4. There are 4 boys. How many girls are there?
  26. 26.Two tanks hold 360 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.(20 + 5) × 4 − 2 =
  28. 28.Three temple bells ring every 6, 12 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.Find the LCM of 15, 9 and 10.
  30. 30.10 : 2 = 60 : ?
  31. 31.25 − 8 ÷ 2 × 4 =
  32. 32.What is the smallest number you must add to 665 so that it divides exactly by 3?
  33. 33.Aarav takes 75 seconds and Karan 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?
  34. 34.What is 120% of 350?
  35. 35.Find the LCM of 4, 15 and 9.
  36. 36.2/3 of 15 + 6 × 7 =
  37. 37.2 × (22 − 2) + 80 ÷ 8 =
  38. 38.Write 31/50 as a percent.
  39. 39.2/9 of 72 + 8 × 5 =
  40. 40.4.3 × 3 =

Answer key

  1. 54
  2. 9
  3. 30
  4. 6
  5. 27000
  6. 50
  7. 161
  8. 144
  9. 180
  10. 45
  11. 4815
  12. 5
  13. 122
  14. 2300
  15. 6.6
  16. 4
  17. 10
  18. 6.54
  19. 2
  20. 80
  21. 69.2
  22. 4/55
  23. 3/8
  24. 536
  25. 16
  26. 40
  27. 98
  28. 60
  29. 90
  30. 12
  31. 9
  32. 1
  33. 300
  34. 420
  35. 180
  36. 52
  37. 50
  38. 62
  39. 56
  40. 12.9

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