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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 560 · 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 1808 ÷ 31? (a) 30 (b) 120 (c) 60 (d) 600
  2. 2.Three temple bells ring every 12, 20 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Find the LCM of 20 and 36.
  4. 4.10/11 + 7/10 =
  5. 5.2/3 − 3/8 =
  6. 6.Round 9114 to the nearest ten.
  7. 7.2/4 × 2/3 =
  8. 8.A hostel has enough food for 5 students for 18 days. How many days will the same food last for 6 students?
  9. 9.12% of a number is 12. What is the number?
  10. 10.Three temple bells ring every 30, 10 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.If 7 bottles of juice cost ₹357, how much do 2 bottles of juice cost (in ₹)?
  12. 12.44 ÷ 8 =
  13. 13.Divide ₹225 between Priya and Zoya in the ratio 2 : 7. How much does Priya get (in ₹)?
  14. 14.2 × (18 − 3) + 32 ÷ 8 =
  15. 15.The HCF of two numbers is 2 and their LCM is 144. One of the numbers is 18. What is the other number?
  16. 16.If 10 kites cost ₹160, how much do 11 kites cost (in ₹)?
  17. 17.Which is closest to 897 ÷ 29? (a) 15 (b) 60 (c) 30 (d) 300
  18. 18.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 9, 3 or 15.
  19. 19.2.28 + 5.5 =
  20. 20.Find the LCM of 5 and 4.
  21. 21.Round 96.37 to one decimal place. =
  22. 22.A car goes 46 km on 2 litres of petrol. How far can it go on 5 litres (in km)?
  23. 23.25% of a number is 108. What is the number?
  24. 24.5.77 + 5.4 =
  25. 25.If 5 mangoes cost ₹195, how much do 9 mangoes cost (in ₹)?
  26. 26.8/10 − 8/11 =
  27. 27.If 9 notebooks cost ₹54, how much do 13 notebooks cost (in ₹)?
  28. 28.Round 19.11 to one decimal place. =
  29. 29.What is the smallest number you must add to 251 so that it divides exactly by 4?
  30. 30.The ratio of boys to girls in a class is 2 : 9. There are 6 boys. How many girls are there?
  31. 31.Three temple bells ring every 30, 5 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.What is the smallest number you must take away from 768 so that it divides exactly by 13?
  33. 33.Two tanks hold 40 litres and 15 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  34. 34.The HCF of two numbers is 3 and their LCM is 63. One of the numbers is 21. What is the other number?
  35. 35.7 × (27 − 6) + 44 ÷ 4 =
  36. 36.Find the LCM of 7, 2 and 9.
  37. 37.2/5 + 1/12 =
  38. 38.Which of these numbers divides exactly by 9? (a) 8988 (b) 6147 (c) 8120 (d) 5350
  39. 39.1/2 of 24 + 4 × 6 =
  40. 40.Find the LCM of 3, 10 and 4.

Answer key

  1. 60
  2. 60
  3. 180
  4. 177/110
  5. 7/24
  6. 9110
  7. 1/3
  8. 15
  9. 100
  10. 120
  11. 102
  12. 5.5
  13. 50
  14. 34
  15. 16
  16. 176
  17. 30
  18. 47
  19. 7.78
  20. 20
  21. 96.4
  22. 115
  23. 432
  24. 11.17
  25. 351
  26. 4/55
  27. 78
  28. 19.1
  29. 1
  30. 27
  31. 60
  32. 1
  33. 5
  34. 9
  35. 158
  36. 126
  37. 29/60
  38. 6147
  39. 36
  40. 60

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