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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 516 · 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.Find the HCF of 36 and 32.
  2. 2.2.1 × 9 =
  3. 3.1/4 + 5/7 =
  4. 4.What is the smallest number you must add to 916 so that it divides exactly by 9?
  5. 5.If 9 pencil boxes cost ₹270, how much do 13 pencil boxes cost (in ₹)?
  6. 6.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 4, 6 or 3.
  7. 7.The HCF of two numbers is 9 and their LCM is 126. One of the numbers is 63. What is the other number?
  8. 8.Find the LCM of 9, 8 and 3.
  9. 9.What is the smallest number you must add to 170 so that it divides exactly by 11?
  10. 10.Two tanks hold 30 litres and 105 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.What is 3/4 of ₹76?
  12. 12.Which is closest to 603 × 21? (Round each number first.) (a) 120000 (b) 24000 (c) 1200 (d) 12000
  13. 13.14 + 12 × 5 − 8 =
  14. 14.Aarav takes 45 seconds and Sneha 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?
  15. 15.Find the LCM of 3 and 4.
  16. 16.Find the HCF of 35 and 25.
  17. 17.Meera takes 40 seconds and Ananya 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?
  18. 18.The HCF of two numbers is 6 and their LCM is 126. One of the numbers is 42. What is the other number?
  19. 19.A car goes 45 km on 5 litres of petrol. How far can it go on 12 litres (in km)?
  20. 20.51.6 ÷ 6 =
  21. 21.Round 78131 to the nearest hundred.
  22. 22.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  23. 23.What is the smallest number you must add to 539 so that it divides exactly by 3?
  24. 24.1.9 × 9 =
  25. 25.3/11 + 2/3 =
  26. 26.Two tanks hold 120 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.Find the HCF of 126 and 70.
  28. 28.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  29. 29.Find the smallest number bigger than 6 that leaves a remainder of 3 when divided by 6, 5 or 4.
  30. 30.Which of these numbers divides exactly by 11? (a) 9939 (b) 8589 (c) 5258 (d) 8794
  31. 31.4/5 − 3/7 =
  32. 32.Find the LCM of 14 and 12.
  33. 33.9 : 2 = 18 : ?
  34. 34.How many factors does 25 have?
  35. 35.Divide ₹210 between Ishaan and Meera in the ratio 8 : 7. How much does Ishaan get (in ₹)?
  36. 36.How many factors does 95 have?
  37. 37.Three temple bells ring every 9, 10 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.If 12 cricket balls cost ₹624, how much do 10 cricket balls cost (in ₹)?
  39. 39.Round 87.56 to one decimal place. =
  40. 40.Which is closest to 792 ÷ 39? (a) 10 (b) 20 (c) 200 (d) 40

Answer key

  1. 4
  2. 18.9
  3. 27/28
  4. 2
  5. 390
  6. 14
  7. 18
  8. 72
  9. 6
  10. 15
  11. 57
  12. 12000
  13. 66
  14. 270
  15. 12
  16. 5
  17. 120
  18. 18
  19. 108
  20. 8.6
  21. 78100
  22. 24
  23. 1
  24. 17.1
  25. 31/33
  26. 15
  27. 14
  28. 150
  29. 63
  30. 5258
  31. 13/35
  32. 84
  33. 4
  34. 3
  35. 112
  36. 4
  37. 90
  38. 520
  39. 87.6
  40. 20

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