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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 166 · 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 25% of 400?
  2. 2.What percent of 50 is 35?
  3. 3.How many factors does 86 have?
  4. 4.What is 10% of 330?
  5. 5.9.9 × 9 =
  6. 6.1/11 × 1/2 =
  7. 7.Three temple bells ring every 24, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.28 + 11 × 6 − 16 =
  9. 9.3 × (20 − 3) + 80 ÷ 8 =
  10. 10.How many factors does 77 have?
  11. 11.How many factors does 78 have?
  12. 12.18 ÷ 3 × 3 + 20 =
  13. 13.Divide ₹120 between Manav and Karan in the ratio 1 : 9. How much does Manav get (in ₹)?
  14. 14.Divide ₹192 between Ananya and Saanvi in the ratio 7 : 1. How much does Ananya get (in ₹)?
  15. 15.Find the HCF of 135 and 105.
  16. 16.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  17. 17.46 + 4 × 3 − 7 =
  18. 18.Three temple bells ring every 5, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.A hall floor is 480 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  20. 20.What is 1/2 of 54 litres?
  21. 21.Write 9/20 as a percent.
  22. 22.Two tanks hold 150 litres and 250 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  23. 23.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  24. 24.Divide ₹784 between Ishaan and Vivaan in the ratio 5 : 9. How much does Ishaan get (in ₹)?
  25. 25.Find the HCF of 42 and 56.
  26. 26.A hall floor is 280 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.If 11 pens cost ₹385, how much do 4 pens cost (in ₹)?
  28. 28.Find the LCM of 30 and 18.
  29. 29.(8 + 4) × 7 − 5 =
  30. 30.Which of these numbers divides exactly by 11? (a) 5547 (b) 4455 (c) 1072 (d) 5723
  31. 31.4 × (19 − 11) + 21 ÷ 3 =
  32. 32.15% of a number is 45. What is the number?
  33. 33.Three temple bells ring every 8, 5 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.3 painters can paint a school in 25 days. How many days would 5 painters take, working at the same speed?
  35. 35.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 8 or 6.
  36. 36.Divide ₹480 between Kabir and Manav in the ratio 8 : 7. How much does Manav get (in ₹)?
  37. 37.48 ÷ 6 × 7 + 2 =
  38. 38.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  39. 39.4 × (30 − 5) + 56 ÷ 7 =
  40. 40.Three temple bells ring every 20, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 100
  2. 70
  3. 4
  4. 33
  5. 89.1
  6. 1/22
  7. 120
  8. 78
  9. 61
  10. 4
  11. 8
  12. 38
  13. 12
  14. 168
  15. 15
  16. 32
  17. 51
  18. 120
  19. 24
  20. 27
  21. 45
  22. 50
  23. 112
  24. 280
  25. 14
  26. 42
  27. 140
  28. 90
  29. 79
  30. 4455
  31. 39
  32. 300
  33. 120
  34. 15
  35. 25
  36. 224
  37. 58
  38. 72
  39. 108
  40. 40

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