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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 472 · 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.Divide ₹338 between Kavya and Rohan in the ratio 8 : 5. How much does Rohan get (in ₹)?
  2. 2.Find the LCM of 15 and 9.
  3. 3.The ratio of boys to girls in a class is 1 : 8. There are 8 boys. How many girls are there?
  4. 4.7 : 8 = 35 : ?
  5. 5.Which of these numbers divides exactly by 8? (a) 1761 (b) 6477 (c) 2881 (d) 5848
  6. 6.Dev takes 54 seconds and Saanvi takes 45 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?
  7. 7.Write 3/5 as a percent.
  8. 8.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  9. 9.Kabir takes 60 seconds and Nisha takes 90 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?
  10. 10.What is 4/9 of 36 km?
  11. 11.Three temple bells ring every 4, 10 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 8, 5 or 15.
  13. 13.Three temple bells ring every 12, 18 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.Isha takes 30 seconds and Arjun 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?
  15. 15.What is 25% of 564?
  16. 16.What is 12% of 275?
  17. 17.18 ÷ 9 × 9 + 25 =
  18. 18.80% of a number is 384. What is the number?
  19. 19.5 : 9 = 35 : ?
  20. 20.Round 28.63 to one decimal place. =
  21. 21.How many factors does 65 have?
  22. 22.Find the LCM of 14 and 6.
  23. 23.Find the LCM of 12 and 9.
  24. 24.1.97 + 5.8 =
  25. 25.What is the smallest number you must add to 287 so that it divides exactly by 13?
  26. 26.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  27. 27.Find the HCF of 30 and 40.
  28. 28.Two tanks hold 270 litres and 315 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Find the LCM of 14, 8 and 2.
  30. 30.The HCF of two numbers is 5 and their LCM is 225. One of the numbers is 25. What is the other number?
  31. 31.The ratio of boys to girls in a class is 1 : 9. There are 4 boys. How many girls are there?
  32. 32.Find the LCM of 12, 4 and 13.
  33. 33.The HCF of two numbers is 5 and their LCM is 180. One of the numbers is 45. What is the other number?
  34. 34.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 6.
  35. 35.If 10 mangoes cost ₹500, how much do 5 mangoes cost (in ₹)?
  36. 36.What percent of 400 is 28?
  37. 37.43 − 56 ÷ 8 × 4 =
  38. 38.Divide ₹112 between Priya and Dev in the ratio 4 : 3. How much does Priya get (in ₹)?
  39. 39.2.8 × 9 =
  40. 40.Two tanks hold 240 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 130
  2. 45
  3. 64
  4. 40
  5. 5848
  6. 270
  7. 60
  8. 32
  9. 180
  10. 16
  11. 60
  12. 123
  13. 72
  14. 180
  15. 141
  16. 33
  17. 43
  18. 480
  19. 63
  20. 28.6
  21. 4
  22. 42
  23. 36
  24. 7.77
  25. 12
  26. 50
  27. 10
  28. 45
  29. 56
  30. 45
  31. 36
  32. 156
  33. 20
  34. 31
  35. 250
  36. 7
  37. 15
  38. 64
  39. 25.2
  40. 40

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