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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 935 · 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 197 + 95 + 695? (a) 900 (b) 1200 (c) 1000 (d) 1100
  2. 2.Find the HCF of 28 and 21.
  3. 3.Round 60704 to the nearest hundred.
  4. 4.13 + 12 × 11 − 6 =
  5. 5.8 painters can paint a school in 25 days. How many days would 5 painters take, working at the same speed?
  6. 6.What percent of 50 is 29?
  7. 7.The HCF of two numbers is 8 and their LCM is 168. One of the numbers is 56. What is the other number?
  8. 8.Find the LCM of 4, 12 and 3.
  9. 9.Kavya takes 30 seconds and Manav 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?
  10. 10.Which of these numbers divides exactly by 9? (a) 3914 (b) 9243 (c) 2083 (d) 2334
  11. 11.1.9 × 4 =
  12. 12.What is the smallest number you must take away from 175 so that it divides exactly by 6?
  13. 13.9 painters can paint a school in 30 days. How many days would 6 painters take, working at the same speed?
  14. 14.Three temple bells ring every 30, 8 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.9 painters can paint a school in 20 days. How many days would 5 painters take, working at the same speed?
  16. 16.Find the HCF of 14 and 35.
  17. 17.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  18. 18.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  19. 19.Three temple bells ring every 12, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.1/2 × 4/10 =
  21. 21.How many factors does 45 have?
  22. 22.Find the HCF of 45 and 25.
  23. 23.If 6 kg of rice costs ₹126, how many kg can you buy for ₹105?
  24. 24.Find the HCF of 135 and 60.
  25. 25.If 3 kg of rice costs ₹93, how many kg can you buy for ₹155?
  26. 26.Which is closest to 2401 ÷ 41? (a) 120 (b) 30 (c) 60 (d) 600
  27. 27.Which of these numbers divides exactly by 11? (a) 1805 (b) 4942 (c) 2662 (d) 4903
  28. 28.What is 60% of 360?
  29. 29.2 painters can paint a school in 6 days. How many days would 4 painters take, working at the same speed?
  30. 30.If 10 cricket balls cost ₹450, how much do 7 cricket balls cost (in ₹)?
  31. 31.5.48 + 9.2 =
  32. 32.Which is closest to 2501 ÷ 49? (a) 25 (b) 100 (c) 500 (d) 50
  33. 33.What is the smallest number you must add to 527 so that it divides exactly by 13?
  34. 34.7.2 × 9 =
  35. 35.If 4 notebooks cost ₹36, how much do 7 notebooks cost (in ₹)?
  36. 36.If 5 kites cost ₹75, how much do 20 kites cost (in ₹)?
  37. 37.The HCF of two numbers is 7 and their LCM is 147. One of the numbers is 49. What is the other number?
  38. 38.Find the HCF of 105 and 30.
  39. 39.Which is closest to 503 + 802 + 96? (a) 1300 (b) 1500 (c) 1600 (d) 1400
  40. 40.Which is closest to 501 × 92? (Round each number first.) (a) 450000 (b) 4500 (c) 45000 (d) 90000

Answer key

  1. 1000
  2. 7
  3. 60700
  4. 139
  5. 40
  6. 58
  7. 24
  8. 12
  9. 270
  10. 9243
  11. 7.6
  12. 1
  13. 45
  14. 120
  15. 36
  16. 7
  17. 64
  18. 54
  19. 24
  20. 1/5
  21. 6
  22. 5
  23. 5
  24. 15
  25. 5
  26. 60
  27. 2662
  28. 216
  29. 3
  30. 315
  31. 14.68
  32. 50
  33. 6
  34. 64.8
  35. 63
  36. 300
  37. 21
  38. 15
  39. 1400
  40. 45000

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