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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 742 · 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.(6 + 12) × 9 − 12 =
  2. 2.If 11 cricket balls cost ₹231, how much do 6 cricket balls cost (in ₹)?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 4, 8 or 15.
  4. 4.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?
  5. 5.Which is closest to 904 + 797 + 103? (a) 2000 (b) 1800 (c) 1700 (d) 1900
  6. 6.Find the LCM of 48 and 30.
  7. 7.If 4 kg of rice costs ₹204, how many kg can you buy for ₹714?
  8. 8.Which is closest to 197 + 97 + 902? (a) 1100 (b) 1400 (c) 1200 (d) 1300
  9. 9.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 9, 4 or 6.
  10. 10.8 painters can paint a school in 7 days. How many days would 14 painters take, working at the same speed?
  11. 11.What is 60% of 500?
  12. 12.Find the LCM of 2, 5 and 11.
  13. 13.What percent of 400 is 200?
  14. 14.How many factors does 71 have?
  15. 15.Find the HCF of 42 and 48.
  16. 16.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 6, 4 or 5.
  17. 17.Two tanks hold 160 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.Which of these numbers divides exactly by 4? (a) 9366 (b) 3210 (c) 1310 (d) 5532
  19. 19.3 × (22 − 16) + 24 ÷ 3 =
  20. 20.8 : 9 = 24 : ?
  21. 21.Find the HCF of 135 and 105.
  22. 22.How many factors does 39 have?
  23. 23.Write 1/2 as a percent.
  24. 24.36 ÷ 6 × 6 + 12 =
  25. 25.4.3 × 3 =
  26. 26.The ratio of boys to girls in a class is 3 : 2. There are 30 boys. How many girls are there?
  27. 27.Which of these numbers divides exactly by 9? (a) 2210 (b) 3474 (c) 1192 (d) 4994
  28. 28.A hostel has enough food for 9 students for 11 days. How many days will the same food last for 11 students?
  29. 29.20 ÷ 5 × 4 + 25 =
  30. 30.12% of a number is 6. What is the number?
  31. 31.11 : 3 = 77 : ?
  32. 32.Diya takes 60 seconds and Dev 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?
  33. 33.5.1 × 3 =
  34. 34.Find the HCF of 50 and 80.
  35. 35.(9 + 3) × 6 − 15 =
  36. 36.Diya takes 90 seconds and Aditya takes 80 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?
  37. 37.What is the smallest number you must add to 845 so that it divides exactly by 8?
  38. 38.Write 13/20 as a percent.
  39. 39.What is the smallest number you must take away from 995 so that it divides exactly by 11?
  40. 40.Three temple bells ring every 6, 4 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 150
  2. 126
  3. 121
  4. 40
  5. 1800
  6. 240
  7. 14
  8. 1200
  9. 37
  10. 4
  11. 300
  12. 110
  13. 50
  14. 2
  15. 6
  16. 61
  17. 20
  18. 5532
  19. 26
  20. 27
  21. 15
  22. 4
  23. 50
  24. 48
  25. 12.9
  26. 20
  27. 3474
  28. 9
  29. 41
  30. 50
  31. 21
  32. 300
  33. 15.3
  34. 10
  35. 57
  36. 720
  37. 3
  38. 65
  39. 5
  40. 60

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