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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 347 · 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 HCF of 75 and 105.
  2. 2.16 ÷ 5 =
  3. 3.Find the HCF of 30 and 54.
  4. 4.What is the smallest number you must add to 526 so that it divides exactly by 9?
  5. 5.3/9 − 1/4 =
  6. 6.Which is closest to 300 × 59? (Round each number first.) (a) 36000 (b) 180000 (c) 18000 (d) 1800
  7. 7.(4 + 11) × 8 − 30 =
  8. 8.Find the HCF of 12 and 9.
  9. 9.Round 22791 to the nearest hundred.
  10. 10.Find the LCM of 32 and 28.
  11. 11.12 : 10 = 24 : ?
  12. 12.6 × (15 − 7) + 8 ÷ 2 =
  13. 13.33 + 7 × 10 − 8 =
  14. 14.What is the smallest number you must add to 785 so that it divides exactly by 9?
  15. 15.6.39 + 7.6 =
  16. 16.Which is closest to 103 + 203 + 603? (a) 800 (b) 900 (c) 1000 (d) 1100
  17. 17.A car goes 32 km on 2 litres of petrol. How far can it go on 7 litres (in km)?
  18. 18.1/3 × 2/11 =
  19. 19.What is 5/8 of 136 litres?
  20. 20.72 ÷ 6 × 3 + 28 =
  21. 21.1.14 + 5.3 =
  22. 22.What is 1/4 of 72 kg?
  23. 23.Three temple bells ring every 12, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.2/11 + 1/3 =
  25. 25.The ratio of boys to girls in a class is 9 : 1. There are 90 boys. How many girls are there?
  26. 26.If 9 kg of rice costs ₹351, how many kg can you buy for ₹585?
  27. 27.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  28. 28.Three temple bells ring every 4, 30 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.Divide ₹175 between Zoya and Arjun in the ratio 5 : 2. How much does Zoya get (in ₹)?
  30. 30.Find the LCM of 16 and 12.
  31. 31.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  32. 32.A car goes 162 km on 9 litres of petrol. How far can it go on 39 litres (in km)?
  33. 33.12 : 15 = 36 : ?
  34. 34.Pooja takes 45 seconds and Nisha takes 48 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?
  35. 35.Find the LCM of 12, 7 and 6.
  36. 36.Which is closest to 795 ÷ 19? (a) 80 (b) 40 (c) 20 (d) 400
  37. 37.Find the LCM of 10 and 6.
  38. 38.What is the smallest number you must take away from 961 so that it divides exactly by 6?
  39. 39.11 painters can paint a school in 4 days. How many days would 4 painters take, working at the same speed?
  40. 40.A car goes 56 km on 7 litres of petrol. How far can it go on 19 litres (in km)?

Answer key

  1. 15
  2. 3.2
  3. 6
  4. 5
  5. 1/12
  6. 18000
  7. 90
  8. 3
  9. 22800
  10. 224
  11. 20
  12. 52
  13. 95
  14. 7
  15. 13.99
  16. 900
  17. 112
  18. 2/33
  19. 85
  20. 64
  21. 6.44
  22. 18
  23. 60
  24. 17/33
  25. 10
  26. 15
  27. 32
  28. 60
  29. 125
  30. 48
  31. 75
  32. 702
  33. 45
  34. 720
  35. 84
  36. 40
  37. 30
  38. 1
  39. 11
  40. 152

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