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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 224 · 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 593 so that it divides exactly by 9?
  2. 2.Meera takes 48 seconds and Pooja takes 72 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?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 3 or 5.
  4. 4.8 × (15 − 11) + 40 ÷ 4 =
  5. 5.If 3 kg of rice costs ₹237, how many kg can you buy for ₹1185?
  6. 6.If 3 notebooks cost ₹147, how much do 2 notebooks cost (in ₹)?
  7. 7.25% of a number is 35. What is the number?
  8. 8.2/3 of 15 + 5 × 4 =
  9. 9.2/4 − 2/7 =
  10. 10.Three temple bells ring every 4, 6 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.Find the smallest number bigger than 12 that leaves a remainder of 4 when divided by 5, 6 or 12.
  12. 12.What is the smallest number you must take away from 887 so that it divides exactly by 9?
  13. 13.The ratio of boys to girls in a class is 1 : 3. There are 3 boys. How many girls are there?
  14. 14.3/7 of 35 + 8 × 5 =
  15. 15.26.8 ÷ 4 =
  16. 16.Find the LCM of 18 and 4.
  17. 17.Find the LCM of 6 and 14.
  18. 18.What is 15% of 100?
  19. 19.What is the smallest number you must add to 611 so that it divides exactly by 7?
  20. 20.What is the smallest number you must take away from 150 so that it divides exactly by 7?
  21. 21.Divide ₹204 between Ishaan and Isha in the ratio 1 : 5. How much does Isha get (in ₹)?
  22. 22.Two tanks hold 90 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  23. 23.2/7 of 28 + 9 × 3 =
  24. 24.What is the smallest number you must take away from 999 so that it divides exactly by 12?
  25. 25.Which is closest to 1791 ÷ 19? (a) 180 (b) 900 (c) 45 (d) 90
  26. 26.3.5 × 9 =
  27. 27.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  28. 28.Find the LCM of 28 and 8.
  29. 29.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  30. 30.How many factors does 96 have?
  31. 31.What is 120% of 550?
  32. 32.2/3 + 4/5 =
  33. 33.Round 32.33 to one decimal place. =
  34. 34.Write 2/5 as a percent.
  35. 35.Find the HCF of 48 and 60.
  36. 36.Round 80.76 to one decimal place. =
  37. 37.2/3 + 10/12 =
  38. 38.28.2 ÷ 6 =
  39. 39.What is the smallest number you must add to 343 so that it divides exactly by 11?
  40. 40.The ratio of boys to girls in a class is 7 : 3. There are 70 boys. How many girls are there?

Answer key

  1. 8
  2. 144
  3. 17
  4. 42
  5. 15
  6. 98
  7. 140
  8. 30
  9. 3/14
  10. 36
  11. 64
  12. 5
  13. 9
  14. 55
  15. 6.7
  16. 36
  17. 42
  18. 15
  19. 5
  20. 3
  21. 170
  22. 15
  23. 35
  24. 3
  25. 90
  26. 31.5
  27. 18
  28. 56
  29. 54
  30. 12
  31. 660
  32. 22/15
  33. 32.3
  34. 40
  35. 12
  36. 80.8
  37. 3/2
  38. 4.7
  39. 9
  40. 30

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