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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 803 · 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.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  2. 2.Round 60513 to the nearest hundred.
  3. 3.A hostel has enough food for 5 students for 6 days. How many days will the same food last for 6 students?
  4. 4.Two tanks hold 150 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.Round 74125 to the nearest hundred.
  6. 6.Find the LCM of 15 and 35.
  7. 7.Write 6/25 as a percent.
  8. 8.What percent of 400 is 84?
  9. 9.2 : 4 = 16 : ?
  10. 10.Find the LCM of 4, 3 and 5.
  11. 11.What is the smallest number you must take away from 141 so that it divides exactly by 6?
  12. 12.20% of a number is 111. What is the number?
  13. 13.Find the LCM of 14 and 4.
  14. 14.The HCF of two numbers is 7 and their LCM is 42. One of the numbers is 21. What is the other number?
  15. 15.5 : 6 = 25 : ?
  16. 16.If 3 kg of rice costs ₹147, how many kg can you buy for ₹735?
  17. 17.Round 4716 to the nearest thousand.
  18. 18.Round 10393 to the nearest ten.
  19. 19.Ananya scored 14 marks out of 20 in a test. What percentage did Ananya score?
  20. 20.Round 73.93 to one decimal place. =
  21. 21.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 9, 6 or 3.
  22. 22.Which is closest to 794 ÷ 39? (a) 200 (b) 10 (c) 20 (d) 40
  23. 23.Two tanks hold 360 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.Find the HCF of 10 and 25.
  25. 25.What percent of 50 is 28?
  26. 26.Round 59491 to the nearest ten.
  27. 27.If 12 mangoes cost ₹72, how much do 20 mangoes cost (in ₹)?
  28. 28.Find the HCF of 20 and 24.
  29. 29.Find the LCM of 48 and 54.
  30. 30.Find the LCM of 9, 12 and 2.
  31. 31.Round 58.38 to one decimal place. =
  32. 32.Which of these numbers divides exactly by 8? (a) 9623 (b) 1904 (c) 8677 (d) 5341
  33. 33.If 10 mangoes cost ₹510, how much do 11 mangoes cost (in ₹)?
  34. 34.19.8 ÷ 3 =
  35. 35.How many factors does 62 have?
  36. 36.How many factors does 24 have?
  37. 37.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  38. 38.Find the LCM of 4 and 14.
  39. 39.1/2 − 4/9 =
  40. 40.What is the smallest number you must add to 778 so that it divides exactly by 8?

Answer key

  1. 36
  2. 60500
  3. 5
  4. 30
  5. 74100
  6. 105
  7. 24
  8. 21
  9. 32
  10. 60
  11. 3
  12. 555
  13. 28
  14. 14
  15. 30
  16. 15
  17. 5000
  18. 10390
  19. 70
  20. 73.9
  21. 19
  22. 20
  23. 40
  24. 5
  25. 56
  26. 59490
  27. 120
  28. 4
  29. 432
  30. 36
  31. 58.4
  32. 1904
  33. 561
  34. 6.6
  35. 4
  36. 8
  37. 48
  38. 28
  39. 1/18
  40. 6

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