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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 937 · 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.Round 66.16 to one decimal place. =
  2. 2.2/6 + 1/10 =
  3. 3.Priya takes 40 seconds and Manav takes 36 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?
  4. 4.If 9 kg of rice costs ₹657, how many kg can you buy for ₹949?
  5. 5.Write 17/50 as a percent.
  6. 6.What percent of 40 is 4?
  7. 7.What is the smallest number you must add to 108 so that it divides exactly by 13?
  8. 8.Find the LCM of 13, 14 and 7.
  9. 9.Find the HCF of 50 and 60.
  10. 10.Find the LCM of 8 and 28.
  11. 11.Sneha scored 7 marks out of 25 in a test. What percentage did Sneha score?
  12. 12.Find the LCM of 30 and 12.
  13. 13.9 ÷ 2 =
  14. 14.8 : 12 = 16 : ?
  15. 15.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  16. 16.What is 2/3 of ₹30?
  17. 17.Round 16.44 to one decimal place. =
  18. 18.A hostel has enough food for 9 students for 26 days. How many days will the same food last for 13 students?
  19. 19.What is the smallest number you must add to 976 so that it divides exactly by 6?
  20. 20.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  21. 21.The HCF of two numbers is 2 and their LCM is 72. One of the numbers is 8. What is the other number?
  22. 22.27 + 6 × 9 − 27 =
  23. 23.The HCF of two numbers is 5 and their LCM is 60. One of the numbers is 20. What is the other number?
  24. 24.3/8 + 4/6 =
  25. 25.Find the LCM of 4, 6 and 12.
  26. 26.Which of these numbers divides exactly by 6? (a) 9418 (b) 6108 (c) 4240 (d) 9688
  27. 27.Find the smallest number bigger than 12 that leaves a remainder of 7 when divided by 9, 8 or 12.
  28. 28.5.39 + 7.3 =
  29. 29.Write 3/10 as a percent.
  30. 30.1.6 × 9 =
  31. 31.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  32. 32.(4 + 11) × 5 − 23 =
  33. 33.Find the LCM of 7, 6 and 4.
  34. 34.33 + 2 × 6 − 1 =
  35. 35.Three temple bells ring every 20, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.Find the HCF of 36 and 81.
  37. 37.1/2 × 1/4 =
  38. 38.Find the HCF of 36 and 48.
  39. 39.How many factors does 51 have?
  40. 40.What is 150% of 300?

Answer key

  1. 66.2
  2. 13/30
  3. 360
  4. 13
  5. 34
  6. 10
  7. 9
  8. 182
  9. 10
  10. 56
  11. 28
  12. 60
  13. 4.5
  14. 24
  15. 36
  16. 20
  17. 16.4
  18. 18
  19. 2
  20. 50
  21. 18
  22. 54
  23. 15
  24. 25/24
  25. 12
  26. 6108
  27. 79
  28. 12.69
  29. 30
  30. 14.4
  31. 54
  32. 52
  33. 84
  34. 44
  35. 40
  36. 9
  37. 1/8
  38. 12
  39. 4
  40. 450

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