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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 917 · 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 of these numbers divides exactly by 11? (a) 8573 (b) 6429 (c) 2783 (d) 7118
  2. 2.If 12 pencil boxes cost ₹384, how much do 18 pencil boxes cost (in ₹)?
  3. 3.Meera takes 45 seconds and Kavya takes 40 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.Three temple bells ring every 24, 8 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.The ratio of boys to girls in a class is 1 : 5. There are 3 boys. How many girls are there?
  6. 6.Which is closest to 95 + 698 + 296? (a) 1300 (b) 1000 (c) 1100 (d) 1200
  7. 7.What is the smallest number you must add to 959 so that it divides exactly by 8?
  8. 8.Find the LCM of 8 and 36.
  9. 9.8.7 × 2 =
  10. 10.Three temple bells ring every 12, 8 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.25% of a number is 24. What is the number?
  12. 12.79 − 36 ÷ 4 × 7 =
  13. 13.Round 83960 to the nearest thousand.
  14. 14.Find the LCM of 15, 6 and 5.
  15. 15.46 − 16 ÷ 2 × 3 =
  16. 16.Find the LCM of 9 and 15.
  17. 17.Farhan takes 40 seconds and Rahul 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. 18.1/2 + 1/3 =
  19. 19.The ratio of boys to girls in a class is 2 : 5. There are 10 boys. How many girls are there?
  20. 20.What is 60% of 90?
  21. 21.What percent of 20 is 17?
  22. 22.A hostel has enough food for 5 students for 30 days. How many days will the same food last for 3 students?
  23. 23.Karan scored 48 marks out of 80 in a test. What percentage did Karan score?
  24. 24.Which of these numbers divides exactly by 6? (a) 9871 (b) 4182 (c) 5695 (d) 2123
  25. 25.What is the smallest number you must add to 242 so that it divides exactly by 4?
  26. 26.3/5 of 45 + 2 × 2 =
  27. 27.Find the LCM of 36 and 20.
  28. 28.7.3 × 3 =
  29. 29.(8 + 15) × 2 − 3 =
  30. 30.Dev takes 54 seconds and Zoya takes 90 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?
  31. 31.Find the LCM of 3, 12 and 6.
  32. 32.Round 52687 to the nearest ten.
  33. 33.Which is closest to 200 + 302 + 896? (a) 1600 (b) 1500 (c) 1400 (d) 1300
  34. 34.What is 5/7 of ₹182?
  35. 35.Find the LCM of 7 and 2.
  36. 36.Which is closest to 3995 ÷ 49? (a) 160 (b) 40 (c) 800 (d) 80
  37. 37.Two tanks hold 80 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 3 or 12.
  39. 39.27.9 ÷ 9 =
  40. 40.A hall floor is 350 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 2783
  2. 576
  3. 360
  4. 120
  5. 15
  6. 1100
  7. 1
  8. 72
  9. 17.4
  10. 72
  11. 96
  12. 16
  13. 84000
  14. 30
  15. 22
  16. 45
  17. 200
  18. 5/6
  19. 25
  20. 54
  21. 85
  22. 50
  23. 60
  24. 4182
  25. 2
  26. 31
  27. 180
  28. 21.9
  29. 43
  30. 270
  31. 12
  32. 52690
  33. 1400
  34. 130
  35. 14
  36. 80
  37. 20
  38. 61
  39. 3.1
  40. 14

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