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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 253 · 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.Which is closest to 2009 ÷ 51? (a) 400 (b) 20 (c) 80 (d) 40
  2. 2.What is 40% of 60?
  3. 3.24 ÷ 4 × 8 + 7 =
  4. 4.30% of a number is 3. What is the number?
  5. 5.What is 2/5 of 105 km?
  6. 6.47 + 10 × 6 − 35 =
  7. 7.6.09 + 8.7 =
  8. 8.If 3 pens cost ₹153, how much do 16 pens cost (in ₹)?
  9. 9.4.9 × 6 =
  10. 10.Round 14.76 to one decimal place. =
  11. 11.Manav takes 90 seconds and Nisha 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?
  12. 12.2 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  13. 13.Two tanks hold 175 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.7 : 5 = 14 : ?
  15. 15.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 10, 12 or 4.
  16. 16.Find the LCM of 20 and 15.
  17. 17.Nisha takes 60 seconds and Farhan takes 50 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.What percent of 25 is 1?
  19. 19.3/5 + 1/9 =
  20. 20.20% of a number is 105. What is the number?
  21. 21.(18 + 16) × 2 − 2 =
  22. 22.5 × (30 − 27) + 10 ÷ 2 =
  23. 23.What percent of 80 is 16?
  24. 24.The ratio of boys to girls in a class is 7 : 2. There are 28 boys. How many girls are there?
  25. 25.Which of these numbers divides exactly by 4? (a) 5061 (b) 9701 (c) 7363 (d) 5336
  26. 26.Dev takes 72 seconds and Kavya 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?
  27. 27.4/7 of 42 + 9 × 2 =
  28. 28.5.95 + 9.1 =
  29. 29.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 3 or 4.
  30. 30.Which is closest to 1407 ÷ 21? (a) 35 (b) 700 (c) 70 (d) 140
  31. 31.Three temple bells ring every 24, 18 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.9 ÷ 5 =
  33. 33.120% of a number is 48. What is the number?
  34. 34.Two tanks hold 50 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  35. 35.Find the LCM of 15 and 6.
  36. 36.Find the LCM of 10 and 45.
  37. 37.The ratio of boys to girls in a class is 2 : 1. There are 12 boys. How many girls are there?
  38. 38.Find the HCF of 14 and 4.
  39. 39.What is 10% of 70?
  40. 40.3/4 of 8 + 7 × 2 =

Answer key

  1. 40
  2. 24
  3. 55
  4. 10
  5. 42
  6. 72
  7. 14.79
  8. 816
  9. 29.4
  10. 14.8
  11. 270
  12. 2
  13. 25
  14. 10
  15. 63
  16. 60
  17. 300
  18. 4
  19. 32/45
  20. 525
  21. 66
  22. 20
  23. 20
  24. 8
  25. 5336
  26. 360
  27. 42
  28. 15.05
  29. 14
  30. 70
  31. 72
  32. 1.8
  33. 40
  34. 10
  35. 30
  36. 90
  37. 6
  38. 2
  39. 7
  40. 20

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