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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 936 · 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. 1.12 : 3 = 72 : ?
  2. 2.What is 4/7 of ₹77?
  3. 3.4/12 + 3/9 =
  4. 4.15 + 6 × 6 − 13 =
  5. 5.If 6 kg of rice costs ₹138, how many kg can you buy for ₹207?
  6. 6.What is the smallest number you must add to 375 so that it divides exactly by 13?
  7. 7.(9 + 20) × 5 − 8 =
  8. 8.Meera scored 32 marks out of 40 in a test. What percentage did Meera score?
  9. 9.How many factors does 39 have?
  10. 10.If 12 bottles of juice cost ₹336, how much do 9 bottles of juice cost (in ₹)?
  11. 11.Ananya takes 75 seconds and Sneha 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?
  12. 12.The HCF of two numbers is 9 and their LCM is 108. One of the numbers is 27. What is the other number?
  13. 13.What is 5/9 of 225 km?
  14. 14.Which of these numbers divides exactly by 8? (a) 7341 (b) 9584 (c) 1811 (d) 6529
  15. 15.A hall floor is 360 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.3.1 × 7 =
  17. 17.Three temple bells ring every 5, 20 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.Diya scored 39 marks out of 50 in a test. What percentage did Diya score?
  19. 19.How many factors does 57 have?
  20. 20.44 − 56 ÷ 8 × 2 =
  21. 21.Find the HCF of 90 and 105.
  22. 22.Which is closest to 3493 ÷ 49? (a) 700 (b) 70 (c) 140 (d) 35
  23. 23.Two tanks hold 40 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.Divide ₹468 between Karan and Sneha in the ratio 8 : 1. How much does Karan get (in ₹)?
  25. 25.The HCF of two numbers is 2 and their LCM is 112. One of the numbers is 14. What is the other number?
  26. 26.If 4 kg of rice costs ₹260, how many kg can you buy for ₹130?
  27. 27.Round 31.83 to one decimal place. =
  28. 28.60% of a number is 3. What is the number?
  29. 29.12 + 12 × 11 − 10 =
  30. 30.9.9 ÷ 3 =
  31. 31.Sneha takes 54 seconds and Kabir takes 45 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?
  32. 32.Round 61.23 to one decimal place. =
  33. 33.Ishaan takes 45 seconds and Saanvi takes 50 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.Write 3/25 as a percent.
  35. 35.Which of these numbers divides exactly by 3? (a) 6351 (b) 6148 (c) 8390 (d) 1796
  36. 36.Find the LCM of 40 and 35.
  37. 37.5 : 12 = 40 : ?
  38. 38.Find the HCF of 14 and 4.
  39. 39.The ratio of boys to girls in a class is 4 : 5. There are 28 boys. How many girls are there?
  40. 40.Write 43/50 as a percent.

Answer key

  1. 18
  2. 44
  3. 2/3
  4. 38
  5. 9
  6. 2
  7. 137
  8. 80
  9. 4
  10. 252
  11. 450
  12. 36
  13. 125
  14. 9584
  15. 24
  16. 21.7
  17. 60
  18. 78
  19. 4
  20. 30
  21. 15
  22. 70
  23. 5
  24. 416
  25. 16
  26. 2
  27. 31.8
  28. 5
  29. 134
  30. 3.3
  31. 270
  32. 61.2
  33. 450
  34. 12
  35. 6351
  36. 280
  37. 96
  38. 2
  39. 35
  40. 86

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