← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 288 · 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. 1.7/12 − 1/3 =
  2. 2.Find the LCM of 5, 8 and 4.
  3. 3.A hall floor is 60 cm long and 40 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  4. 4.What is the smallest number you must add to 163 so that it divides exactly by 3?
  5. 5.The HCF of two numbers is 8 and their LCM is 120. One of the numbers is 24. What is the other number?
  6. 6.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  7. 7.Find the LCM of 15, 4 and 6.
  8. 8.7/11 − 5/9 =
  9. 9.Round 35.33 to one decimal place. =
  10. 10.What percent of 20 is 2?
  11. 11.Which of these numbers divides exactly by 11? (a) 2311 (b) 2757 (c) 3487 (d) 3319
  12. 12.Find the LCM of 7, 3 and 15.
  13. 13.Divide ₹583 between Kabir and Priya in the ratio 7 : 4. How much does Priya get (in ₹)?
  14. 14.The ratio of boys to girls in a class is 1 : 3. There are 9 boys. How many girls are there?
  15. 15.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  16. 16.Find the HCF of 35 and 14.
  17. 17.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  18. 18.Find the LCM of 12, 5 and 15.
  19. 19.How many factors does 79 have?
  20. 20.Which is closest to 696 + 698 + 95? (a) 1600 (b) 1500 (c) 1400 (d) 1700
  21. 21.11 : 3 = 77 : ?
  22. 22.4 painters can paint a school in 8 days. How many days would 16 painters take, working at the same speed?
  23. 23.5.19 + 1.2 =
  24. 24.A hostel has enough food for 11 students for 19 days. How many days will the same food last for 19 students?
  25. 25.3 painters can paint a school in 9 days. How many days would 9 painters take, working at the same speed?
  26. 26.The ratio of boys to girls in a class is 2 : 9. There are 8 boys. How many girls are there?
  27. 27.24 ÷ 3 × 6 + 22 =
  28. 28.Which is closest to 609 ÷ 19? (a) 60 (b) 15 (c) 30 (d) 300
  29. 29.Divide ₹560 between Aditya and Tara in the ratio 5 : 9. How much does Aditya get (in ₹)?
  30. 30.If 4 kites cost ₹124, how much do 13 kites cost (in ₹)?
  31. 31.10 + 9 × 3 − 6 =
  32. 32.Find the smallest number bigger than 9 that leaves a remainder of 4 when divided by 5, 9 or 6.
  33. 33.7 × (16 − 6) + 10 ÷ 2 =
  34. 34.Which of these numbers divides exactly by 3? (a) 7826 (b) 2071 (c) 2335 (d) 2349
  35. 35.What is the smallest number you must add to 237 so that it divides exactly by 8?
  36. 36.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 4, 15 or 8.
  37. 37.Find the LCM of 6 and 7.
  38. 38.What is the smallest number you must add to 592 so that it divides exactly by 13?
  39. 39.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  40. 40.Find the LCM of 12, 13 and 2.

Answer key

  1. 1/4
  2. 40
  3. 6
  4. 2
  5. 40
  6. 16
  7. 60
  8. 8/99
  9. 35.3
  10. 10
  11. 3487
  12. 105
  13. 212
  14. 27
  15. 20
  16. 7
  17. 28
  18. 60
  19. 2
  20. 1500
  21. 21
  22. 2
  23. 6.39
  24. 11
  25. 3
  26. 36
  27. 70
  28. 30
  29. 200
  30. 403
  31. 31
  32. 94
  33. 75
  34. 2349
  35. 3
  36. 123
  37. 42
  38. 6
  39. 112
  40. 156

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude