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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 974 · 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 LCM of 15 and 18.
  2. 2.1/2 × 10/11 =
  3. 3.What is 150% of 452?
  4. 4.Round 6522 to the nearest hundred.
  5. 5.Divide ₹638 between Ananya and Priya in the ratio 9 : 2. How much does Ananya get (in ₹)?
  6. 6.Round 21.31 to one decimal place. =
  7. 7.Which is closest to 298 × 51? (Round each number first.) (a) 1500 (b) 15000 (c) 150000 (d) 30000
  8. 8.Which is closest to 1809 ÷ 31? (a) 600 (b) 30 (c) 60 (d) 120
  9. 9.Which of these numbers divides exactly by 9? (a) 5990 (b) 3939 (c) 7145 (d) 7524
  10. 10.Three temple bells ring every 10, 15 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.Which is closest to 800 + 97 + 204? (a) 1300 (b) 1000 (c) 1100 (d) 1200
  12. 12.41.4 ÷ 6 =
  13. 13.What is 120% of 80?
  14. 14.The ratio of boys to girls in a class is 5 : 8. There are 40 boys. How many girls are there?
  15. 15.Find the HCF of 16 and 36.
  16. 16.If 8 cricket balls cost ₹144, how much do 6 cricket balls cost (in ₹)?
  17. 17.The HCF of two numbers is 4 and their LCM is 48. One of the numbers is 12. What is the other number?
  18. 18.Two tanks hold 270 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.2 : 6 = 16 : ?
  20. 20.12% of a number is 18. What is the number?
  21. 21.Write 1/4 as a percent.
  22. 22.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 6, 9 or 4.
  23. 23.A car goes 96 km on 4 litres of petrol. How far can it go on 26 litres (in km)?
  24. 24.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  25. 25.8/9 × 1/3 =
  26. 26.7.3 × 3 =
  27. 27.What is 60% of 435?
  28. 28.5.01 + 4.5 =
  29. 29.A car goes 55 km on 5 litres of petrol. How far can it go on 16 litres (in km)?
  30. 30.Divide ₹208 between Aarav and Vivaan in the ratio 3 : 1. How much does Vivaan get (in ₹)?
  31. 31.Divide ₹90 between Pooja and Rahul in the ratio 5 : 1. How much does Rahul get (in ₹)?
  32. 32.1/5 of 40 + 6 × 6 =
  33. 33.Which is closest to 3007 ÷ 51? (a) 600 (b) 120 (c) 60 (d) 30
  34. 34.80% of a number is 256. What is the number?
  35. 35.30% of a number is 18. What is the number?
  36. 36.(12 + 15) × 3 − 16 =
  37. 37.The ratio of boys to girls in a class is 7 : 9. There are 56 boys. How many girls are there?
  38. 38.Which is closest to 201 × 42? (Round each number first.) (a) 800 (b) 80000 (c) 16000 (d) 8000
  39. 39.Which is closest to 497 × 28? (Round each number first.) (a) 15000 (b) 30000 (c) 1500 (d) 150000
  40. 40.5 : 3 = 40 : ?

Answer key

  1. 90
  2. 5/11
  3. 678
  4. 6500
  5. 522
  6. 21.3
  7. 15000
  8. 60
  9. 7524
  10. 60
  11. 1100
  12. 6.9
  13. 96
  14. 64
  15. 4
  16. 108
  17. 16
  18. 30
  19. 48
  20. 150
  21. 25
  22. 38
  23. 624
  24. 112
  25. 8/27
  26. 21.9
  27. 261
  28. 9.51
  29. 176
  30. 52
  31. 15
  32. 44
  33. 60
  34. 320
  35. 60
  36. 65
  37. 72
  38. 8000
  39. 15000
  40. 24

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