← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 5 · 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.Three temple bells ring every 5, 20 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.What is the smallest number you must take away from 778 so that it divides exactly by 3?
  3. 3.How many factors does 29 have?
  4. 4.What is 1/9 of 63 kg?
  5. 5.How many factors does 93 have?
  6. 6.Which is closest to 303 × 91? (Round each number first.) (a) 270000 (b) 2700 (c) 54000 (d) 27000
  7. 7.(2 + 11) × 3 − 22 =
  8. 8.Three temple bells ring every 6, 15 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.7 : 11 = 63 : ?
  10. 10.Round 92.32 to one decimal place. =
  11. 11.Round 69955 to the nearest thousand.
  12. 12.Find the smallest number bigger than 10 that leaves a remainder of 4 when divided by 10, 6 or 5.
  13. 13.Find the LCM of 3 and 2.
  14. 14.Rahul scored 6 marks out of 25 in a test. What percentage did Rahul score?
  15. 15.What is the smallest number you must add to 869 so that it divides exactly by 7?
  16. 16.Three temple bells ring every 5, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.Kabir takes 50 seconds and Zoya 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?
  18. 18.Three temple bells ring every 9, 30 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.12 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
  20. 20.10/11 − 1/8 =
  21. 21.Round 99.71 to one decimal place. =
  22. 22.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  23. 23.The HCF of two numbers is 4 and their LCM is 288. One of the numbers is 36. What is the other number?
  24. 24.Which of these numbers divides exactly by 9? (a) 1766 (b) 8325 (c) 8056 (d) 6526
  25. 25.11 : 4 = 77 : ?
  26. 26.2 × (29 − 28) + 28 ÷ 7 =
  27. 27.Find the HCF of 21 and 24.
  28. 28.Find the LCM of 12, 8 and 7.
  29. 29.If 4 kites cost ₹84, how much do 8 kites cost (in ₹)?
  30. 30.What is the smallest number you must take away from 959 so that it divides exactly by 8?
  31. 31.Round 79.18 to one decimal place. =
  32. 32.4/5 + 2/4 =
  33. 33.Divide ₹429 between Saanvi and Rohan in the ratio 9 : 4. How much does Rohan get (in ₹)?
  34. 34.Round 45.56 to one decimal place. =
  35. 35.Which is closest to 196 × 68? (Round each number first.) (a) 140000 (b) 14000 (c) 28000 (d) 1400
  36. 36.Find the HCF of 56 and 40.
  37. 37.(16 + 7) × 3 − 17 =
  38. 38.Find the LCM of 5, 15 and 6.
  39. 39.Priya scored 14 marks out of 20 in a test. What percentage did Priya score?
  40. 40.Round 58638 to the nearest ten.

Answer key

  1. 120
  2. 1
  3. 2
  4. 7
  5. 4
  6. 27000
  7. 17
  8. 60
  9. 99
  10. 92.3
  11. 70000
  12. 34
  13. 6
  14. 24
  15. 6
  16. 40
  17. 200
  18. 90
  19. 12
  20. 69/88
  21. 99.7
  22. 8
  23. 32
  24. 8325
  25. 28
  26. 6
  27. 3
  28. 168
  29. 168
  30. 7
  31. 79.2
  32. 13/10
  33. 132
  34. 45.6
  35. 14000
  36. 8
  37. 52
  38. 30
  39. 70
  40. 58640

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