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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 630 · 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.Divide ₹689 between Rahul and Farhan in the ratio 7 : 6. How much does Rahul get (in ₹)?
  2. 2.Round 48.82 to one decimal place. =
  3. 3.Find the LCM of 10, 6 and 7.
  4. 4.Find the LCM of 35 and 20.
  5. 5.Divide ₹264 between Nisha and Dev in the ratio 1 : 5. How much does Dev get (in ₹)?
  6. 6.Which is closest to 703 + 301 + 600? (a) 1800 (b) 1600 (c) 1700 (d) 1500
  7. 7.Which of these numbers divides exactly by 11? (a) 4141 (b) 4258 (c) 2226 (d) 7282
  8. 8.Find the LCM of 27 and 15.
  9. 9.A car goes 110 km on 5 litres of petrol. How far can it go on 28 litres (in km)?
  10. 10.4 : 12 = 8 : ?
  11. 11.Find the HCF of 24 and 40.
  12. 12.What is the smallest number you must add to 863 so that it divides exactly by 13?
  13. 13.Two tanks hold 45 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.What is 40% of 140?
  15. 15.8.81 + 8.2 =
  16. 16.Which of these numbers divides exactly by 11? (a) 9695 (b) 5164 (c) 1851 (d) 7854
  17. 17.Which is closest to 1204 ÷ 31? (a) 20 (b) 40 (c) 400 (d) 80
  18. 18.Two tanks hold 100 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.How many factors does 12 have?
  20. 20.Find the LCM of 11, 2 and 4.
  21. 21.28 ÷ 7 × 9 + 28 =
  22. 22.120% of a number is 234. What is the number?
  23. 23.Find the smallest number bigger than 8 that leaves a remainder of 3 when divided by 5, 6 or 8.
  24. 24.Find the LCM of 15, 14 and 6.
  25. 25.If 7 bottles of juice cost ₹413, how much do 17 bottles of juice cost (in ₹)?
  26. 26.20% of a number is 22. What is the number?
  27. 27.Round 76341 to the nearest hundred.
  28. 28.4/6 + 3/5 =
  29. 29.10 painters can paint a school in 6 days. How many days would 12 painters take, working at the same speed?
  30. 30.Which is closest to 400 × 62? (Round each number first.) (a) 24000 (b) 240000 (c) 48000 (d) 2400
  31. 31.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  32. 32.Round 36257 to the nearest thousand.
  33. 33.Meera takes 48 seconds and Farhan takes 72 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?
  34. 34.What is 12% of 375?
  35. 35.If 6 kg of rice costs ₹486, how many kg can you buy for ₹810?
  36. 36.3/4 of 12 + 8 × 4 =
  37. 37.59.5 ÷ 7 =
  38. 38.Find the HCF of 27 and 15.
  39. 39.A car goes 152 km on 8 litres of petrol. How far can it go on 21 litres (in km)?
  40. 40.11 : 9 = 66 : ?

Answer key

  1. 371
  2. 48.8
  3. 210
  4. 140
  5. 220
  6. 1600
  7. 7282
  8. 135
  9. 616
  10. 24
  11. 8
  12. 8
  13. 15
  14. 56
  15. 17.01
  16. 7854
  17. 40
  18. 50
  19. 6
  20. 44
  21. 64
  22. 195
  23. 123
  24. 210
  25. 1003
  26. 110
  27. 76300
  28. 19/15
  29. 5
  30. 24000
  31. 24
  32. 36000
  33. 144
  34. 45
  35. 10
  36. 41
  37. 8.5
  38. 3
  39. 399
  40. 54

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