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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 984 · 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.The HCF of two numbers is 3 and their LCM is 72. One of the numbers is 9. What is the other number?
  2. 2.The ratio of boys to girls in a class is 1 : 8. There are 5 boys. How many girls are there?
  3. 3.Find the HCF of 12 and 14.
  4. 4.If 7 notebooks cost ₹350, how much do 19 notebooks cost (in ₹)?
  5. 5.2/5 + 1/4 =
  6. 6.What percent of 250 is 170?
  7. 7.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 4 or 10.
  8. 8.What is the smallest number you must add to 145 so that it divides exactly by 8?
  9. 9.Round 59218 to the nearest hundred.
  10. 10.3.73 + 9.4 =
  11. 11.Kavya takes 60 seconds and Kabir takes 50 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?
  12. 12.What is the smallest number you must take away from 266 so that it divides exactly by 8?
  13. 13.What is the smallest number you must take away from 214 so that it divides exactly by 4?
  14. 14.What is the smallest number you must add to 494 so that it divides exactly by 6?
  15. 15.Find the LCM of 5, 10 and 12.
  16. 16.Two tanks hold 25 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.What is 1/9 of 135 litres?
  18. 18.Find the HCF of 35 and 56.
  19. 19.Round 55.72 to one decimal place. =
  20. 20.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  21. 21.2 : 13 = 12 : ?
  22. 22.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 9.
  23. 23.Round 29888 to the nearest hundred.
  24. 24.Two tanks hold 120 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  25. 25.The HCF of two numbers is 3 and their LCM is 45. One of the numbers is 9. What is the other number?
  26. 26.What is the smallest number you must take away from 499 so that it divides exactly by 7?
  27. 27.Find the HCF of 8 and 10.
  28. 28.If 4 kg of rice costs ₹84, how many kg can you buy for ₹210?
  29. 29.If 7 notebooks cost ₹56, how much do 10 notebooks cost (in ₹)?
  30. 30.If 4 kg of rice costs ₹356, how many kg can you buy for ₹267?
  31. 31.20 ÷ 2 × 6 + 13 =
  32. 32.The ratio of boys to girls in a class is 9 : 1. There are 45 boys. How many girls are there?
  33. 33.Which of these numbers divides exactly by 3? (a) 3746 (b) 5662 (c) 9297 (d) 7837
  34. 34.If 12 pencil boxes cost ₹72, how much do 2 pencil boxes cost (in ₹)?
  35. 35.2/3 − 1/12 =
  36. 36.What is 1/2 of 44 km?
  37. 37.The ratio of boys to girls in a class is 2 : 9. There are 12 boys. How many girls are there?
  38. 38.If 3 kg of rice costs ₹219, how many kg can you buy for ₹949?
  39. 39.Saanvi scored 2 marks out of 20 in a test. What percentage did Saanvi score?
  40. 40.The ratio of boys to girls in a class is 1 : 3. There are 10 boys. How many girls are there?

Answer key

  1. 24
  2. 40
  3. 2
  4. 950
  5. 13/20
  6. 68
  7. 61
  8. 7
  9. 59200
  10. 13.13
  11. 300
  12. 2
  13. 2
  14. 4
  15. 60
  16. 5
  17. 15
  18. 7
  19. 55.7
  20. 8
  21. 78
  22. 91
  23. 29900
  24. 30
  25. 15
  26. 2
  27. 2
  28. 10
  29. 80
  30. 3
  31. 73
  32. 5
  33. 9297
  34. 12
  35. 7/12
  36. 22
  37. 54
  38. 13
  39. 10
  40. 30

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