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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 321 · 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.Kabir scored 4 marks out of 20 in a test. What percentage did Kabir score?
  2. 2.If 6 kg of rice costs ₹120, how many kg can you buy for ₹80?
  3. 3.Three temple bells ring every 18, 5 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.If 7 bottles of juice cost ₹112, how much do 13 bottles of juice cost (in ₹)?
  5. 5.58 − 24 ÷ 8 × 6 =
  6. 6.7.91 + 8.3 =
  7. 7.Which is closest to 1007 ÷ 19? (a) 50 (b) 25 (c) 100 (d) 500
  8. 8.Two tanks hold 90 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.Write 23/50 as a percent.
  10. 10.(19 + 10) × 3 − 17 =
  11. 11.150% of a number is 594. What is the number?
  12. 12.What is 30% of 150?
  13. 13.Find the LCM of 3, 4 and 6.
  14. 14.Find the smallest number bigger than 10 that leaves a remainder of 3 when divided by 6, 10 or 9.
  15. 15.Round 31.62 to one decimal place. =
  16. 16.Round 11081 to the nearest hundred.
  17. 17.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  18. 18.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 5 or 3.
  19. 19.The ratio of boys to girls in a class is 1 : 5. There are 4 boys. How many girls are there?
  20. 20.Three temple bells ring every 6, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.Which is closest to 398 + 903 + 398? (a) 1700 (b) 1900 (c) 1600 (d) 1800
  22. 22.Find the HCF of 26 and 65.
  23. 23.Find the smallest number bigger than 15 that leaves a remainder of 5 when divided by 12, 15 or 6.
  24. 24.Which is closest to 804 + 104 + 95? (a) 1200 (b) 900 (c) 1000 (d) 1100
  25. 25.Round 27.28 to one decimal place. =
  26. 26.12 ÷ 6 × 6 + 23 =
  27. 27.The HCF of two numbers is 2 and their LCM is 48. One of the numbers is 16. What is the other number?
  28. 28.Write 1/2 as a percent.
  29. 29.9/11 − 2/3 =
  30. 30.The ratio of boys to girls in a class is 5 : 6. There are 15 boys. How many girls are there?
  31. 31.Which is closest to 302 × 38? (Round each number first.) (a) 120000 (b) 12000 (c) 24000 (d) 1200
  32. 32.How many factors does 59 have?
  33. 33.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 9, 3 or 12.
  34. 34.What is the smallest number you must add to 753 so that it divides exactly by 6?
  35. 35.11 : 12 = 33 : ?
  36. 36.A hostel has enough food for 9 students for 10 days. How many days will the same food last for 10 students?
  37. 37.Aarav takes 36 seconds and Aditya 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?
  38. 38.Round 87504 to the nearest ten.
  39. 39.Which is closest to 198 × 49? (Round each number first.) (a) 1000 (b) 20000 (c) 10000 (d) 100000
  40. 40.(4 + 15) × 3 − 18 =

Answer key

  1. 20
  2. 4
  3. 90
  4. 208
  5. 40
  6. 16.21
  7. 50
  8. 10
  9. 46
  10. 70
  11. 396
  12. 45
  13. 12
  14. 93
  15. 31.6
  16. 11100
  17. 18
  18. 61
  19. 20
  20. 60
  21. 1700
  22. 13
  23. 65
  24. 1000
  25. 27.3
  26. 35
  27. 6
  28. 50
  29. 5/33
  30. 18
  31. 12000
  32. 2
  33. 37
  34. 3
  35. 36
  36. 9
  37. 180
  38. 87500
  39. 10000
  40. 39

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