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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 712 · 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 119 so that it divides exactly by 12?
  2. 2.1/2 × 8/9 =
  3. 3.Find the HCF of 36 and 27.
  4. 4.What percent of 200 is 42?
  5. 5.Round 60566 to the nearest ten.
  6. 6.45 + 5 × 7 − 33 =
  7. 7.Find the LCM of 21 and 6.
  8. 8.3/10 + 1/3 =
  9. 9.Which of these numbers divides exactly by 11? (a) 4277 (b) 2226 (c) 5786 (d) 6142
  10. 10.73 − 10 ÷ 2 × 9 =
  11. 11.If 8 pens cost ₹120, how much do 11 pens cost (in ₹)?
  12. 12.Divide ₹144 between Aarav and Farhan in the ratio 7 : 1. How much does Aarav get (in ₹)?
  13. 13.A hostel has enough food for 8 students for 5 days. How many days will the same food last for 10 students?
  14. 14.Find the LCM of 8 and 18.
  15. 15.(14 + 7) × 8 − 17 =
  16. 16.If 12 notebooks cost ₹216, how much do 8 notebooks cost (in ₹)?
  17. 17.Find the LCM of 21 and 9.
  18. 18.If 12 mangoes cost ₹264, how much do 14 mangoes cost (in ₹)?
  19. 19.Divide ₹600 between Manav and Kavya in the ratio 8 : 7. How much does Kavya get (in ₹)?
  20. 20.Round 16427 to the nearest ten.
  21. 21.A car goes 75 km on 5 litres of petrol. How far can it go on 15 litres (in km)?
  22. 22.12% of a number is 63. What is the number?
  23. 23.A hall floor is 120 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.22 + 10 × 8 − 7 =
  25. 25.Find the HCF of 108 and 84.
  26. 26.3/6 × 1/10 =
  27. 27.Which is closest to 495 + 899 + 296? (a) 1800 (b) 1900 (c) 1600 (d) 1700
  28. 28.Rohan takes 50 seconds and Sneha takes 40 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?
  29. 29.The ratio of boys to girls in a class is 3 : 1. There are 24 boys. How many girls are there?
  30. 30.29 − 8 ÷ 2 × 4 =
  31. 31.5 : 6 = 20 : ?
  32. 32.3 : 6 = 9 : ?
  33. 33.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  34. 34.Which is closest to 1509 ÷ 29? (a) 25 (b) 500 (c) 100 (d) 50
  35. 35.Which is closest to 105 + 295 + 97? (a) 600 (b) 500 (c) 700 (d) 400
  36. 36.What is the smallest number you must add to 825 so that it divides exactly by 4?
  37. 37.How many factors does 38 have?
  38. 38.(3 + 11) × 5 − 21 =
  39. 39.If 7 notebooks cost ₹84, how much do 5 notebooks cost (in ₹)?
  40. 40.Divide ₹294 between Kavya and Pooja in the ratio 3 : 4. How much does Pooja get (in ₹)?

Answer key

  1. 11
  2. 4/9
  3. 9
  4. 21
  5. 60570
  6. 47
  7. 42
  8. 19/30
  9. 5786
  10. 28
  11. 165
  12. 126
  13. 4
  14. 72
  15. 151
  16. 144
  17. 63
  18. 308
  19. 280
  20. 16430
  21. 225
  22. 525
  23. 30
  24. 95
  25. 12
  26. 1/20
  27. 1700
  28. 200
  29. 8
  30. 13
  31. 24
  32. 18
  33. 48
  34. 50
  35. 500
  36. 3
  37. 4
  38. 49
  39. 60
  40. 168

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