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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 824 · 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.The HCF of two numbers is 2 and their LCM is 84. One of the numbers is 14. What is the other number?
  2. 2.If 4 pens cost ₹132, how much do 6 pens cost (in ₹)?
  3. 3.How many factors does 27 have?
  4. 4.How many factors does 30 have?
  5. 5.Which is closest to 404 × 30? (Round each number first.) (a) 1200 (b) 24000 (c) 120000 (d) 12000
  6. 6.Find the LCM of 3, 10 and 7.
  7. 7.What is the smallest number you must take away from 157 so that it divides exactly by 6?
  8. 8.Which is closest to 597 + 196 + 404? (a) 1400 (b) 1200 (c) 1300 (d) 1100
  9. 9.Which is closest to 1196 ÷ 41? (a) 60 (b) 30 (c) 15 (d) 300
  10. 10.Which of these numbers divides exactly by 3? (a) 8960 (b) 4529 (c) 5126 (d) 8973
  11. 11.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 4 or 8.
  12. 12.17.5 ÷ 5 =
  13. 13.What is the smallest number you must add to 294 so that it divides exactly by 12?
  14. 14.A hall floor is 240 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  15. 15.Two tanks hold 180 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  16. 16.Three temple bells ring every 9, 4 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.Diya takes 40 seconds and Dev takes 90 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?
  18. 18.Divide ₹414 between Meera and Aditya in the ratio 4 : 5. How much does Meera get (in ₹)?
  19. 19.How many factors does 81 have?
  20. 20.A car goes 175 km on 7 litres of petrol. How far can it go on 27 litres (in km)?
  21. 21.If 5 kg of rice costs ₹290, how many kg can you buy for ₹174?
  22. 22.What is the smallest number you must take away from 899 so that it divides exactly by 12?
  23. 23.Divide ₹143 between Meera and Saanvi in the ratio 4 : 7. How much does Meera get (in ₹)?
  24. 24.What is 150% of 454?
  25. 25.3 : 4 = 12 : ?
  26. 26.37 + 9 × 7 − 32 =
  27. 27.2/3 of 33 + 5 × 4 =
  28. 28.What is the smallest number you must add to 955 so that it divides exactly by 8?
  29. 29.What is 20% of 40?
  30. 30.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 6 or 5.
  31. 31.How many factors does 37 have?
  32. 32.Which is closest to 804 ÷ 21? (a) 400 (b) 40 (c) 20 (d) 80
  33. 33.What is 5% of 140?
  34. 34.Which of these numbers divides exactly by 11? (a) 7559 (b) 4522 (c) 8921 (d) 3287
  35. 35.Divide ₹130 between Priya and Kavya in the ratio 3 : 7. How much does Priya get (in ₹)?
  36. 36.What is 75% of 436?
  37. 37.A car goes 36 km on 3 litres of petrol. How far can it go on 18 litres (in km)?
  38. 38.The HCF of two numbers is 6 and their LCM is 180. One of the numbers is 30. What is the other number?
  39. 39.Find the LCM of 10, 2 and 14.
  40. 40.3.68 + 6.5 =

Answer key

  1. 12
  2. 198
  3. 4
  4. 8
  5. 12000
  6. 210
  7. 1
  8. 1200
  9. 30
  10. 8973
  11. 26
  12. 3.5
  13. 6
  14. 12
  15. 20
  16. 36
  17. 360
  18. 184
  19. 5
  20. 675
  21. 3
  22. 11
  23. 52
  24. 681
  25. 16
  26. 68
  27. 42
  28. 5
  29. 8
  30. 33
  31. 2
  32. 40
  33. 7
  34. 8921
  35. 39
  36. 327
  37. 216
  38. 36
  39. 70
  40. 10.18

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