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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 693 · 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 percent of 20 is 4?
  2. 2.The ratio of boys to girls in a class is 2 : 3. There are 16 boys. How many girls are there?
  3. 3.50% of a number is 173. What is the number?
  4. 4.Write 4/5 as a percent.
  5. 5.Which is closest to 2709 ÷ 31? (a) 180 (b) 90 (c) 45 (d) 900
  6. 6.Which is closest to 2705 ÷ 29? (a) 45 (b) 900 (c) 90 (d) 180
  7. 7.The ratio of boys to girls in a class is 5 : 7. There are 35 boys. How many girls are there?
  8. 8.What is the smallest number you must add to 109 so that it divides exactly by 13?
  9. 9.Find the HCF of 77 and 22.
  10. 10.How many factors does 43 have?
  11. 11.3/4 × 4/10 =
  12. 12.Find the HCF of 14 and 4.
  13. 13.Which is closest to 2791 ÷ 39? (a) 140 (b) 35 (c) 700 (d) 70
  14. 14.How many factors does 34 have?
  15. 15.1/3 × 5/11 =
  16. 16.A hostel has enough food for 4 students for 10 days. How many days will the same food last for 2 students?
  17. 17.9 × (24 − 13) + 40 ÷ 8 =
  18. 18.Divide ₹153 between Arjun and Priya in the ratio 4 : 5. How much does Arjun get (in ₹)?
  19. 19.Which is closest to 301 × 72? (Round each number first.) (a) 42000 (b) 210000 (c) 21000 (d) 2100
  20. 20.A hostel has enough food for 3 students for 19 days. How many days will the same food last for 19 students?
  21. 21.Find the LCM of 12 and 21.
  22. 22.47 + 6 × 6 − 8 =
  23. 23.What is 10% of 260?
  24. 24.1/2 of 4 + 2 × 9 =
  25. 25.Meera takes 80 seconds and Rahul takes 30 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?
  26. 26.Find the HCF of 12 and 20.
  27. 27.3.43 + 5.8 =
  28. 28.Kavya scored 2 marks out of 25 in a test. What percentage did Kavya score?
  29. 29.Two tanks hold 200 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.Which of these numbers divides exactly by 9? (a) 2743 (b) 7552 (c) 2993 (d) 1728
  31. 31.Which is closest to 901 × 49? (Round each number first.) (a) 4500 (b) 450000 (c) 45000 (d) 90000
  32. 32.Which of these numbers divides exactly by 6? (a) 9497 (b) 5874 (c) 9496 (d) 1810
  33. 33.Two tanks hold 60 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  34. 34.What is 12% of 450?
  35. 35.Manav scored 17 marks out of 20 in a test. What percentage did Manav score?
  36. 36.A hall floor is 360 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.Round 50139 to the nearest ten.
  38. 38.Which of these numbers divides exactly by 3? (a) 5101 (b) 2317 (c) 4922 (d) 6474
  39. 39.Two tanks hold 240 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.3.61 + 7.9 =

Answer key

  1. 20
  2. 24
  3. 346
  4. 80
  5. 90
  6. 90
  7. 49
  8. 8
  9. 11
  10. 2
  11. 3/10
  12. 2
  13. 70
  14. 4
  15. 5/33
  16. 20
  17. 104
  18. 68
  19. 21000
  20. 3
  21. 84
  22. 75
  23. 26
  24. 20
  25. 240
  26. 4
  27. 9.23
  28. 8
  29. 40
  30. 1728
  31. 45000
  32. 5874
  33. 30
  34. 54
  35. 85
  36. 40
  37. 50140
  38. 6474
  39. 30
  40. 11.51

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