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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 924 · 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 smallest number bigger than 8 that leaves a remainder of 1 when divided by 4, 3 or 8.
  2. 2.Farhan takes 60 seconds and Meera takes 75 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.Kabir takes 30 seconds and Zoya 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?
  4. 4.What is 10% of 180?
  5. 5.Which of these numbers divides exactly by 8? (a) 9121 (b) 7779 (c) 8645 (d) 3264
  6. 6.3/4 − 2/3 =
  7. 7.7 : 15 = 56 : ?
  8. 8.5/7 × 1/3 =
  9. 9.16 + 6 × 4 − 8 =
  10. 10.Three temple bells ring every 24, 4 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.How many factors does 44 have?
  12. 12.Two tanks hold 225 litres and 315 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.What is 60% of 285?
  14. 14.2.78 + 5.6 =
  15. 15.What is the smallest number you must take away from 749 so that it divides exactly by 3?
  16. 16.Three temple bells ring every 6, 9 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.42 ÷ 7 × 4 + 7 =
  18. 18.6 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  19. 19.(16 + 13) × 4 − 18 =
  20. 20.4 : 14 = 28 : ?
  21. 21.Write 1/2 as a percent.
  22. 22.If 12 notebooks cost ₹540, how much do 8 notebooks cost (in ₹)?
  23. 23.What is 15% of 280?
  24. 24.2 × (16 − 4) + 80 ÷ 8 =
  25. 25.(14 + 20) × 8 − 1 =
  26. 26.150% of a number is 432. What is the number?
  27. 27.The HCF of two numbers is 6 and their LCM is 84. One of the numbers is 42. What is the other number?
  28. 28.Find the LCM of 4, 15 and 8.
  29. 29.Round 32919 to the nearest thousand.
  30. 30.What is the smallest number you must take away from 727 so that it divides exactly by 4?
  31. 31.2/5 − 2/10 =
  32. 32.Which is closest to 1502 ÷ 49? (a) 300 (b) 60 (c) 15 (d) 30
  33. 33.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  34. 34.Which of these numbers divides exactly by 3? (a) 6229 (b) 3434 (c) 6165 (d) 1937
  35. 35.10.2 ÷ 2 =
  36. 36.Which is closest to 603 + 196 + 398? (a) 1100 (b) 1300 (c) 1200 (d) 1400
  37. 37.How many factors does 52 have?
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 4 or 3.
  39. 39.A car goes 117 km on 9 litres of petrol. How far can it go on 28 litres (in km)?
  40. 40.12 + 6 × 4 − 4 =

Answer key

  1. 25
  2. 300
  3. 270
  4. 18
  5. 3264
  6. 1/12
  7. 120
  8. 5/21
  9. 32
  10. 120
  11. 6
  12. 45
  13. 171
  14. 8.38
  15. 2
  16. 36
  17. 31
  18. 6
  19. 98
  20. 98
  21. 50
  22. 360
  23. 42
  24. 34
  25. 271
  26. 288
  27. 12
  28. 120
  29. 33000
  30. 3
  31. 1/5
  32. 30
  33. 128
  34. 6165
  35. 5.1
  36. 1200
  37. 6
  38. 61
  39. 364
  40. 32

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