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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 800 · 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.Tara scored 6 marks out of 40 in a test. What percentage did Tara score?
  2. 2.The HCF of two numbers is 2 and their LCM is 126. One of the numbers is 18. What is the other number?
  3. 3.Which is closest to 204 × 81? (Round each number first.) (a) 160000 (b) 1600 (c) 32000 (d) 16000
  4. 4.The HCF of two numbers is 9 and their LCM is 360. One of the numbers is 45. What is the other number?
  5. 5.Which is closest to 997 ÷ 49? (a) 20 (b) 10 (c) 200 (d) 40
  6. 6.Write 3/10 as a percent.
  7. 7.5.2 ÷ 4 =
  8. 8.Two tanks hold 70 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.Round 84.69 to one decimal place. =
  10. 10.If 6 bottles of juice cost ₹288, how much do 12 bottles of juice cost (in ₹)?
  11. 11.The ratio of boys to girls in a class is 3 : 7. There are 30 boys. How many girls are there?
  12. 12.Find the LCM of 18 and 42.
  13. 13.Round 79.54 to one decimal place. =
  14. 14.Write 1/4 as a percent.
  15. 15.Which is closest to 1804 ÷ 19? (a) 900 (b) 90 (c) 180 (d) 45
  16. 16.Round 14.76 to one decimal place. =
  17. 17.Round 35639 to the nearest thousand.
  18. 18.If 2 kg of rice costs ₹90, how many kg can you buy for ₹315?
  19. 19.(6 + 14) × 4 − 15 =
  20. 20.If 4 bottles of juice cost ₹52, how much do 12 bottles of juice cost (in ₹)?
  21. 21.Three temple bells ring every 5, 9 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.9/12 − 1/2 =
  23. 23.7 painters can paint a school in 4 days. How many days would 2 painters take, working at the same speed?
  24. 24.How many factors does 65 have?
  25. 25.What percent of 500 is 80?
  26. 26.What is the smallest number you must add to 991 so that it divides exactly by 12?
  27. 27.Divide ₹480 between Ishaan and Arjun in the ratio 9 : 1. How much does Ishaan get (in ₹)?
  28. 28.What percent of 200 is 128?
  29. 29.Three temple bells ring every 18, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.Which of these numbers divides exactly by 9? (a) 7588 (b) 4656 (c) 4563 (d) 1495
  31. 31.The ratio of boys to girls in a class is 8 : 3. There are 24 boys. How many girls are there?
  32. 32.4/11 × 2/4 =
  33. 33.Which is closest to 1191 ÷ 29? (a) 80 (b) 20 (c) 400 (d) 40
  34. 34.Find the LCM of 45 and 35.
  35. 35.Three temple bells ring every 5, 18 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.A hall floor is 180 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.Find the HCF of 40 and 64.
  38. 38.Write 1/5 as a percent.
  39. 39.Find the HCF of 48 and 60.
  40. 40.5% of a number is 9. What is the number?

Answer key

  1. 15
  2. 14
  3. 16000
  4. 72
  5. 20
  6. 30
  7. 1.3
  8. 10
  9. 84.7
  10. 576
  11. 70
  12. 126
  13. 79.5
  14. 25
  15. 90
  16. 14.8
  17. 36000
  18. 7
  19. 65
  20. 156
  21. 90
  22. 1/4
  23. 14
  24. 4
  25. 16
  26. 5
  27. 432
  28. 64
  29. 90
  30. 4563
  31. 9
  32. 2/11
  33. 40
  34. 315
  35. 90
  36. 30
  37. 8
  38. 20
  39. 12
  40. 180

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