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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 158 · 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 16 km on 2 litres of petrol. How far can it go on 17 litres (in km)?
  2. 2.Find the LCM of 15, 5 and 6.
  3. 3.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  4. 4.Which of these numbers divides exactly by 3? (a) 7355 (b) 9963 (c) 2365 (d) 9374
  5. 5.Find the LCM of 2 and 3.
  6. 6.If 3 kg of rice costs ₹105, how many kg can you buy for ₹70?
  7. 7.1/2 × 5/12 =
  8. 8.What percent of 400 is 368?
  9. 9.If 5 kg of rice costs ₹270, how many kg can you buy for ₹648?
  10. 10.Which is closest to 797 × 52? (Round each number first.) (a) 80000 (b) 4000 (c) 400000 (d) 40000
  11. 11.What is the smallest number you must take away from 673 so that it divides exactly by 6?
  12. 12.8/9 of 54 + 2 × 6 =
  13. 13.How many factors does 83 have?
  14. 14.7 : 8 = 21 : ?
  15. 15.If 3 kg of rice costs ₹210, how many kg can you buy for ₹560?
  16. 16.What is 50% of 362?
  17. 17.Find the HCF of 26 and 65.
  18. 18.Find the LCM of 7, 2 and 6.
  19. 19.What is 150% of 290?
  20. 20.3/5 × 4/8 =
  21. 21.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 9, 15 or 6.
  22. 22.Find the HCF of 36 and 16.
  23. 23.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 8, 10 or 4.
  24. 24.What is the smallest number you must add to 881 so that it divides exactly by 11?
  25. 25.1.5 × 7 =
  26. 26.What is the smallest number you must add to 735 so that it divides exactly by 6?
  27. 27.20% of a number is 78. What is the number?
  28. 28.24 ÷ 3 × 9 + 13 =
  29. 29.Divide ₹154 between Vivaan and Priya in the ratio 5 : 6. How much does Priya get (in ₹)?
  30. 30.Which is closest to 901 × 41? (Round each number first.) (a) 360000 (b) 36000 (c) 3600 (d) 72000
  31. 31.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  32. 32.What is 1/2 of ₹52?
  33. 33.Round 96.17 to one decimal place. =
  34. 34.What is the smallest number you must add to 519 so that it divides exactly by 7?
  35. 35.9 : 4 = 81 : ?
  36. 36.6.81 + 6.9 =
  37. 37.13 + 6 × 2 − 3 =
  38. 38.Three temple bells ring every 10, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.How many factors does 73 have?
  40. 40.8/9 of 90 + 6 × 2 =

Answer key

  1. 136
  2. 30
  3. 27
  4. 9963
  5. 6
  6. 2
  7. 5/24
  8. 92
  9. 12
  10. 40000
  11. 1
  12. 60
  13. 2
  14. 24
  15. 8
  16. 181
  17. 13
  18. 42
  19. 435
  20. 3/10
  21. 91
  22. 4
  23. 42
  24. 10
  25. 10.5
  26. 3
  27. 390
  28. 85
  29. 84
  30. 36000
  31. 64
  32. 26
  33. 96.2
  34. 6
  35. 36
  36. 13.71
  37. 22
  38. 30
  39. 2
  40. 92

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