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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 654 · 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.Write 11/25 as a percent.
  2. 2.If 6 kg of rice costs ₹264, how many kg can you buy for ₹88?
  3. 3.The ratio of boys to girls in a class is 8 : 9. There are 80 boys. How many girls are there?
  4. 4.Find the LCM of 15, 6 and 8.
  5. 5.What is the smallest number you must take away from 101 so that it divides exactly by 12?
  6. 6.A hall floor is 200 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  7. 7.What is the smallest number you must add to 623 so that it divides exactly by 4?
  8. 8.Which of these numbers divides exactly by 8? (a) 5988 (b) 2169 (c) 2756 (d) 3080
  9. 9.1/3 of 21 + 4 × 7 =
  10. 10.A hall floor is 160 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.6/12 − 4/9 =
  12. 12.120% of a number is 36. What is the number?
  13. 13.2 × (27 − 1) + 55 ÷ 5 =
  14. 14.Which of these numbers divides exactly by 11? (a) 2721 (b) 4022 (c) 8103 (d) 9119
  15. 15.Find the LCM of 45 and 40.
  16. 16.4/8 − 4/9 =
  17. 17.2 : 12 = 18 : ?
  18. 18.9 : 10 = 54 : ?
  19. 19.If 7 cricket balls cost ₹315, how much do 4 cricket balls cost (in ₹)?
  20. 20.5 : 3 = 35 : ?
  21. 21.Find the LCM of 10, 12 and 2.
  22. 22.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  23. 23.Round 66.54 to one decimal place. =
  24. 24.A car goes 175 km on 7 litres of petrol. How far can it go on 35 litres (in km)?
  25. 25.Which is closest to 304 × 19? (Round each number first.) (a) 12000 (b) 60000 (c) 6000 (d) 600
  26. 26.A car goes 44 km on 4 litres of petrol. How far can it go on 20 litres (in km)?
  27. 27.2/3 − 1/2 =
  28. 28.The ratio of boys to girls in a class is 1 : 6. There are 3 boys. How many girls are there?
  29. 29.What percent of 400 is 384?
  30. 30.Which of these numbers divides exactly by 4? (a) 2203 (b) 4092 (c) 6809 (d) 6949
  31. 31.8.2 × 8 =
  32. 32.If 4 kg of rice costs ₹208, how many kg can you buy for ₹624?
  33. 33.Which is closest to 900 + 701 + 496? (a) 2300 (b) 2100 (c) 2000 (d) 2200
  34. 34.Divide ₹273 between Zoya and Rohan in the ratio 3 : 4. How much does Rohan get (in ₹)?
  35. 35.Sneha takes 90 seconds and Kabir takes 40 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?
  36. 36.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 4, 5 or 10.
  37. 37.Which is closest to 901 + 98 + 199? (a) 1300 (b) 1400 (c) 1100 (d) 1200
  38. 38.30% of a number is 15. What is the number?
  39. 39.6/9 + 5/10 =
  40. 40.11/12 − 2/4 =

Answer key

  1. 44
  2. 2
  3. 90
  4. 120
  5. 5
  6. 24
  7. 1
  8. 3080
  9. 35
  10. 12
  11. 1/18
  12. 30
  13. 63
  14. 9119
  15. 360
  16. 1/18
  17. 108
  18. 60
  19. 180
  20. 21
  21. 60
  22. 125
  23. 66.5
  24. 875
  25. 6000
  26. 220
  27. 1/6
  28. 18
  29. 96
  30. 4092
  31. 65.6
  32. 12
  33. 2100
  34. 156
  35. 360
  36. 21
  37. 1200
  38. 50
  39. 7/6
  40. 5/12

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