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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 835 · 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 LCM of 8 and 6.
  2. 2.150% of a number is 549. What is the number?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 4, 15 or 8.
  4. 4.The HCF of two numbers is 4 and their LCM is 168. One of the numbers is 28. What is the other number?
  5. 5.5/7 of 56 + 8 × 6 =
  6. 6.Find the HCF of 54 and 48.
  7. 7.50 ÷ 5 × 9 + 13 =
  8. 8.Priya scored 37 marks out of 50 in a test. What percentage did Priya score?
  9. 9.If 4 notebooks cost ₹20, how much do 12 notebooks cost (in ₹)?
  10. 10.Which is closest to 804 × 30? (Round each number first.) (a) 2400 (b) 24000 (c) 48000 (d) 240000
  11. 11.What is 80% of 595?
  12. 12.6/8 + 1/2 =
  13. 13.Meera takes 36 seconds and Rohan 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?
  14. 14.Which is closest to 402 × 30? (Round each number first.) (a) 1200 (b) 120000 (c) 12000 (d) 24000
  15. 15.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 4, 6 or 5.
  16. 16.Find the HCF of 60 and 96.
  17. 17.(10 + 2) × 6 − 2 =
  18. 18.Find the HCF of 28 and 20.
  19. 19.Which is closest to 802 + 297 + 296? (a) 1400 (b) 1300 (c) 1500 (d) 1600
  20. 20.What is the smallest number you must add to 875 so that it divides exactly by 12?
  21. 21.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.A hall floor is 125 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.3 × (14 − 6) + 12 ÷ 4 =
  24. 24.Find the HCF of 54 and 45.
  25. 25.What percent of 20 is 14?
  26. 26.2 painters can paint a school in 24 days. How many days would 16 painters take, working at the same speed?
  27. 27.A car goes 96 km on 6 litres of petrol. How far can it go on 22 litres (in km)?
  28. 28.Three temple bells ring every 12, 8 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.10 : 3 = 40 : ?
  30. 30.Find the LCM of 4, 8 and 2.
  31. 31.1/6 × 4/7 =
  32. 32.How many factors does 19 have?
  33. 33.How many factors does 77 have?
  34. 34.5/10 × 2/6 =
  35. 35.Three temple bells ring every 24, 12 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.5/6 of 66 + 2 × 8 =
  37. 37.Find the LCM of 14, 7 and 8.
  38. 38.Find the HCF of 28 and 24.
  39. 39.Which of these numbers divides exactly by 11? (a) 6908 (b) 4955 (c) 7697 (d) 1631
  40. 40.Which is closest to 504 × 28? (Round each number first.) (a) 150000 (b) 30000 (c) 15000 (d) 1500

Answer key

  1. 24
  2. 366
  3. 122
  4. 24
  5. 88
  6. 6
  7. 103
  8. 74
  9. 60
  10. 24000
  11. 476
  12. 5/4
  13. 720
  14. 12000
  15. 62
  16. 12
  17. 70
  18. 4
  19. 1400
  20. 1
  21. 21
  22. 15
  23. 27
  24. 9
  25. 70
  26. 3
  27. 352
  28. 24
  29. 12
  30. 8
  31. 2/21
  32. 2
  33. 4
  34. 1/6
  35. 72
  36. 71
  37. 56
  38. 4
  39. 6908
  40. 15000

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