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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 329 · 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.Find the LCM of 30 and 25.
  2. 2.Find the LCM of 6, 5 and 12.
  3. 3.81 ÷ 9 × 2 + 5 =
  4. 4.Divide ₹462 between Kavya and Rohan in the ratio 7 : 4. How much does Kavya get (in ₹)?
  5. 5.Find the LCM of 9, 3 and 6.
  6. 6.Divide ₹252 between Tara and Meera in the ratio 7 : 2. How much does Meera get (in ₹)?
  7. 7.Tara scored 4 marks out of 50 in a test. What percentage did Tara score?
  8. 8.61 − 20 ÷ 5 × 6 =
  9. 9.Find the HCF of 35 and 30.
  10. 10.Which of these numbers divides exactly by 4? (a) 1213 (b) 1384 (c) 9906 (d) 9651
  11. 11.What is the smallest number you must add to 182 so that it divides exactly by 6?
  12. 12.4/5 − 4/8 =
  13. 13.Write 3/10 as a percent.
  14. 14.What is the smallest number you must add to 189 so that it divides exactly by 12?
  15. 15.2 : 5 = 6 : ?
  16. 16.Divide ₹286 between Tara and Kabir in the ratio 5 : 8. How much does Kabir get (in ₹)?
  17. 17.If 3 kg of rice costs ₹240, how many kg can you buy for ₹480?
  18. 18.15% of a number is 6. What is the number?
  19. 19.The HCF of two numbers is 8 and their LCM is 280. One of the numbers is 56. What is the other number?
  20. 20.Divide ₹286 between Aarav and Dev in the ratio 6 : 5. How much does Dev get (in ₹)?
  21. 21.Find the LCM of 5, 4 and 2.
  22. 22.The ratio of boys to girls in a class is 1 : 8. There are 4 boys. How many girls are there?
  23. 23.If 8 kg of rice costs ₹488, how many kg can you buy for ₹915?
  24. 24.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 12. What is the other number?
  25. 25.Which is closest to 297 × 69? (Round each number first.) (a) 2100 (b) 210000 (c) 42000 (d) 21000
  26. 26.What is 3/4 of 32 kg?
  27. 27.Find the LCM of 4, 7 and 12.
  28. 28.The ratio of boys to girls in a class is 9 : 5. There are 18 boys. How many girls are there?
  29. 29.The ratio of boys to girls in a class is 5 : 3. There are 50 boys. How many girls are there?
  30. 30.36 ÷ 4 × 2 + 21 =
  31. 31.Three temple bells ring every 12, 24 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.47.7 ÷ 9 =
  33. 33.Which is closest to 295 + 298 + 499? (a) 1300 (b) 1100 (c) 1200 (d) 1000
  34. 34.Find the smallest number bigger than 10 that leaves a remainder of 3 when divided by 4, 10 or 8.
  35. 35.1/2 + 3/7 =
  36. 36.What is the smallest number you must take away from 495 so that it divides exactly by 7?
  37. 37.If 9 kg of rice costs ₹243, how many kg can you buy for ₹297?
  38. 38.Three temple bells ring every 20, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.What is the smallest number you must add to 841 so that it divides exactly by 6?
  40. 40.Find the HCF of 126 and 56.

Answer key

  1. 150
  2. 60
  3. 23
  4. 294
  5. 18
  6. 56
  7. 8
  8. 37
  9. 5
  10. 1384
  11. 4
  12. 3/10
  13. 30
  14. 3
  15. 15
  16. 176
  17. 6
  18. 40
  19. 40
  20. 130
  21. 20
  22. 32
  23. 15
  24. 8
  25. 21000
  26. 24
  27. 84
  28. 10
  29. 30
  30. 39
  31. 120
  32. 5.3
  33. 1100
  34. 43
  35. 13/14
  36. 5
  37. 11
  38. 120
  39. 5
  40. 14

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