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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 194 · 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 ratio of boys to girls in a class is 4 : 1. There are 12 boys. How many girls are there?
  2. 2.Three temple bells ring every 6, 10 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.If 4 bottles of juice cost ₹196, how much do 2 bottles of juice cost (in ₹)?
  4. 4.Which is closest to 1507 ÷ 49? (a) 15 (b) 30 (c) 300 (d) 60
  5. 5.3/4 of 28 + 8 × 7 =
  6. 6.11 painters can paint a school in 9 days. How many days would 9 painters take, working at the same speed?
  7. 7.The HCF of two numbers is 3 and their LCM is 135. One of the numbers is 27. What is the other number?
  8. 8.What is 5% of 260?
  9. 9.Which of these numbers divides exactly by 6? (a) 8790 (b) 2745 (c) 5417 (d) 5182
  10. 10.What is 1/5 of 45 litres?
  11. 11.Find the LCM of 7, 12 and 3.
  12. 12.Which is closest to 895 + 901 + 799? (a) 2500 (b) 2600 (c) 2700 (d) 2800
  13. 13.Two tanks hold 280 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.If 2 notebooks cost ₹52, how much do 11 notebooks cost (in ₹)?
  15. 15.Two tanks hold 160 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  16. 16.68 ÷ 8 =
  17. 17.9 × (20 − 18) + 49 ÷ 7 =
  18. 18.Divide ₹300 between Rohan and Isha in the ratio 3 : 7. How much does Isha get (in ₹)?
  19. 19.How many factors does 75 have?
  20. 20.What is the smallest number you must add to 446 so that it divides exactly by 8?
  21. 21.Find the LCM of 8 and 20.
  22. 22.7 painters can paint a school in 27 days. How many days would 21 painters take, working at the same speed?
  23. 23.If 9 kg of rice costs ₹405, how many kg can you buy for ₹585?
  24. 24.32 + 7 × 6 − 12 =
  25. 25.28 − 36 ÷ 6 × 2 =
  26. 26.The ratio of boys to girls in a class is 1 : 4. There are 8 boys. How many girls are there?
  27. 27.Find the LCM of 28 and 12.
  28. 28.8/10 − 2/12 =
  29. 29.What is the smallest number you must take away from 292 so that it divides exactly by 9?
  30. 30.What is the smallest number you must add to 168 so that it divides exactly by 11?
  31. 31.Find the LCM of 3, 10 and 8.
  32. 32.Three temple bells ring every 18, 8 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.Round 84144 to the nearest thousand.
  34. 34.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 3 or 8.
  35. 35.(10 + 17) × 5 − 24 =
  36. 36.What is the smallest number you must take away from 791 so that it divides exactly by 12?
  37. 37.12 : 5 = 60 : ?
  38. 38.What is the smallest number you must add to 703 so that it divides exactly by 6?
  39. 39.If 2 kites cost ₹28, how much do 10 kites cost (in ₹)?
  40. 40.What is 3/5 of 110 litres?

Answer key

  1. 3
  2. 30
  3. 98
  4. 30
  5. 77
  6. 11
  7. 15
  8. 13
  9. 8790
  10. 9
  11. 84
  12. 2600
  13. 40
  14. 286
  15. 40
  16. 8.5
  17. 25
  18. 210
  19. 6
  20. 2
  21. 40
  22. 9
  23. 13
  24. 62
  25. 16
  26. 32
  27. 84
  28. 19/30
  29. 4
  30. 8
  31. 120
  32. 72
  33. 84000
  34. 121
  35. 111
  36. 11
  37. 25
  38. 5
  39. 140
  40. 66

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