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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 338 · 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.What is the smallest number you must take away from 371 so that it divides exactly by 13?
  2. 2.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 8 or 3.
  3. 3.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  4. 4.Meera scored 3 marks out of 25 in a test. What percentage did Meera score?
  5. 5.Which is closest to 600 × 62? (Round each number first.) (a) 360000 (b) 36000 (c) 3600 (d) 72000
  6. 6.50 ÷ 5 × 9 + 24 =
  7. 7.What percent of 250 is 215?
  8. 8.15 ÷ 5 × 9 + 1 =
  9. 9.The ratio of boys to girls in a class is 8 : 1. There are 24 boys. How many girls are there?
  10. 10.What is 30% of 60?
  11. 11.What is the smallest number you must add to 136 so that it divides exactly by 11?
  12. 12.Find the LCM of 7, 12 and 3.
  13. 13.Round 66228 to the nearest ten.
  14. 14.Divide ₹129 between Isha and Nisha in the ratio 1 : 2. How much does Isha get (in ₹)?
  15. 15.Three temple bells ring every 10, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.(13 + 15) × 9 − 11 =
  17. 17.What is the smallest number you must add to 592 so that it divides exactly by 11?
  18. 18.Find the LCM of 3, 7 and 5.
  19. 19.Zoya scored 2 marks out of 25 in a test. What percentage did Zoya score?
  20. 20.Which is closest to 205 + 97 + 495? (a) 900 (b) 700 (c) 800 (d) 1000
  21. 21.Which of these numbers divides exactly by 8? (a) 3746 (b) 4033 (c) 2816 (d) 9516
  22. 22.9/12 × 3/6 =
  23. 23.12% of a number is 18. What is the number?
  24. 24.What is the smallest number you must take away from 816 so that it divides exactly by 13?
  25. 25.Find the LCM of 6, 9 and 3.
  26. 26.1/2 − 3/10 =
  27. 27.5.35 + 3.8 =
  28. 28.A hall floor is 150 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.If 5 notebooks cost ₹145, how much do 4 notebooks cost (in ₹)?
  30. 30.Two tanks hold 210 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  31. 31.If 4 pencil boxes cost ₹72, how much do 3 pencil boxes cost (in ₹)?
  32. 32.If 3 kg of rice costs ₹66, how many kg can you buy for ₹198?
  33. 33.What is 25% of 128?
  34. 34.Divide ₹246 between Karan and Sneha in the ratio 5 : 1. How much does Karan get (in ₹)?
  35. 35.What percent of 500 is 265?
  36. 36.If 6 kg of rice costs ₹402, how many kg can you buy for ₹938?
  37. 37.Find the LCM of 10, 5 and 14.
  38. 38.Find the LCM of 30 and 35.
  39. 39.Find the LCM of 4, 3 and 15.
  40. 40.11 painters can paint a school in 25 days. How many days would 5 painters take, working at the same speed?

Answer key

  1. 7
  2. 26
  3. 8
  4. 12
  5. 36000
  6. 114
  7. 86
  8. 28
  9. 3
  10. 18
  11. 7
  12. 84
  13. 66230
  14. 43
  15. 30
  16. 241
  17. 2
  18. 105
  19. 8
  20. 800
  21. 2816
  22. 3/8
  23. 150
  24. 10
  25. 18
  26. 1/5
  27. 9.15
  28. 6
  29. 116
  30. 30
  31. 54
  32. 9
  33. 32
  34. 205
  35. 53
  36. 14
  37. 70
  38. 210
  39. 60
  40. 55

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