← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 102 · 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.Which is closest to 203 × 31? (Round each number first.) (a) 6000 (b) 60000 (c) 600 (d) 12000
  2. 2.Arjun scored 76 marks out of 80 in a test. What percentage did Arjun score?
  3. 3.5% of a number is 22. What is the number?
  4. 4.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  5. 5.Three temple bells ring every 15, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.20 ÷ 4 × 3 + 12 =
  7. 7.9 × (18 − 8) + 45 ÷ 5 =
  8. 8.What is 1/2 of ₹36?
  9. 9.A hall floor is 360 cm long and 315 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.The ratio of boys to girls in a class is 8 : 5. There are 72 boys. How many girls are there?
  11. 11.Find the LCM of 2 and 7.
  12. 12.Which is closest to 502 × 29? (Round each number first.) (a) 15000 (b) 30000 (c) 150000 (d) 1500
  13. 13.Find the LCM of 12, 7 and 8.
  14. 14.2 painters can paint a school in 30 days. How many days would 3 painters take, working at the same speed?
  15. 15.(7 + 12) × 2 − 11 =
  16. 16.Which of these numbers divides exactly by 8? (a) 8707 (b) 6834 (c) 4989 (d) 1288
  17. 17.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 12, 15 or 5.
  18. 18.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 6. What is the other number?
  19. 19.5% of a number is 21. What is the number?
  20. 20.Round 65.23 to one decimal place. =
  21. 21.The HCF of two numbers is 6 and their LCM is 60. One of the numbers is 30. What is the other number?
  22. 22.What is the smallest number you must take away from 836 so that it divides exactly by 6?
  23. 23.Which is closest to 1497 ÷ 49? (a) 60 (b) 300 (c) 15 (d) 30
  24. 24.The HCF of two numbers is 9 and their LCM is 324. One of the numbers is 36. What is the other number?
  25. 25.How many factors does 83 have?
  26. 26.10% of a number is 34. What is the number?
  27. 27.34 + 9 × 4 − 24 =
  28. 28.12 : 2 = 96 : ?
  29. 29.Find the LCM of 10, 6 and 9.
  30. 30.Find the LCM of 7, 2 and 4.
  31. 31.Which of these numbers divides exactly by 6? (a) 1116 (b) 1018 (c) 4510 (d) 2815
  32. 32.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  33. 33.What is 5/6 of 138 students?
  34. 34.33 − 6 ÷ 2 × 5 =
  35. 35.Which is closest to 496 × 41? (Round each number first.) (a) 20000 (b) 40000 (c) 200000 (d) 2000
  36. 36.How many factors does 74 have?
  37. 37.What is the smallest number you must add to 193 so that it divides exactly by 12?
  38. 38.Three temple bells ring every 5, 6 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.Two tanks hold 40 litres and 70 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.15 ÷ 3 × 2 + 9 =

Answer key

  1. 6000
  2. 95
  3. 440
  4. 125
  5. 120
  6. 27
  7. 99
  8. 18
  9. 56
  10. 45
  11. 14
  12. 15000
  13. 168
  14. 20
  15. 27
  16. 1288
  17. 61
  18. 10
  19. 420
  20. 65.2
  21. 12
  22. 2
  23. 30
  24. 81
  25. 2
  26. 340
  27. 46
  28. 16
  29. 90
  30. 28
  31. 1116
  32. 27
  33. 115
  34. 18
  35. 20000
  36. 4
  37. 11
  38. 60
  39. 10
  40. 19

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