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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 938 · 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.A car goes 78 km on 6 litres of petrol. How far can it go on 2 litres (in km)?
  2. 2.How many factors does 45 have?
  3. 3.How many factors does 28 have?
  4. 4.(13 + 18) × 5 − 29 =
  5. 5.Find the HCF of 49 and 14.
  6. 6.Divide ₹140 between Sneha and Nisha in the ratio 3 : 4. How much does Nisha get (in ₹)?
  7. 7.2/9 of 108 + 7 × 9 =
  8. 8.Which of these numbers divides exactly by 8? (a) 6188 (b) 7811 (c) 8091 (d) 6648
  9. 9.What is the smallest number you must add to 175 so that it divides exactly by 8?
  10. 10.Which of these numbers divides exactly by 6? (a) 2941 (b) 7175 (c) 4710 (d) 2306
  11. 11.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  12. 12.Which is closest to 403 × 22? (Round each number first.) (a) 800 (b) 8000 (c) 16000 (d) 80000
  13. 13.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 4.
  14. 14.1/3 of 27 + 4 × 6 =
  15. 15.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
  16. 16.Find the smallest number bigger than 15 that leaves a remainder of 9 when divided by 15, 12 or 10.
  17. 17.2 painters can paint a school in 14 days. How many days would 14 painters take, working at the same speed?
  18. 18.Sneha scored 24 marks out of 50 in a test. What percentage did Sneha score?
  19. 19.Which of these numbers divides exactly by 11? (a) 4226 (b) 6884 (c) 2645 (d) 3146
  20. 20.Which of these numbers divides exactly by 9? (a) 5661 (b) 7639 (c) 4255 (d) 5241
  21. 21.Find the LCM of 7, 9 and 2.
  22. 22.Write 1/10 as a percent.
  23. 23.Find the LCM of 2 and 9.
  24. 24.Divide ₹495 between Kabir and Meera in the ratio 4 : 7. How much does Kabir get (in ₹)?
  25. 25.Find the LCM of 4, 3 and 10.
  26. 26.Which is closest to 602 × 91? (Round each number first.) (a) 54000 (b) 540000 (c) 108000 (d) 5400
  27. 27.3/9 × 1/2 =
  28. 28.Which of these numbers divides exactly by 11? (a) 7286 (b) 8716 (c) 3894 (d) 3159
  29. 29.(17 + 15) × 6 − 18 =
  30. 30.32 + 8 × 2 − 10 =
  31. 31.26 + 3 × 4 − 24 =
  32. 32.99 ÷ 9 × 3 + 10 =
  33. 33.Which is closest to 702 × 61? (Round each number first.) (a) 84000 (b) 42000 (c) 4200 (d) 420000
  34. 34.5% of a number is 1. What is the number?
  35. 35.What percent of 80 is 12?
  36. 36.50 ÷ 5 × 5 + 18 =
  37. 37.What is the smallest number you must take away from 867 so that it divides exactly by 9?
  38. 38.Which of these numbers divides exactly by 9? (a) 1764 (b) 3401 (c) 1105 (d) 2452
  39. 39.Rahul takes 72 seconds and Tara 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?
  40. 40.How many factors does 24 have?

Answer key

  1. 26
  2. 6
  3. 6
  4. 126
  5. 7
  6. 80
  7. 87
  8. 6648
  9. 1
  10. 4710
  11. 32
  12. 8000
  13. 61
  14. 33
  15. 9
  16. 69
  17. 2
  18. 48
  19. 3146
  20. 5661
  21. 126
  22. 10
  23. 18
  24. 180
  25. 60
  26. 54000
  27. 1/6
  28. 3894
  29. 174
  30. 38
  31. 14
  32. 43
  33. 42000
  34. 20
  35. 15
  36. 68
  37. 3
  38. 1764
  39. 360
  40. 8

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