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29 October, 09:29

Ms. Adams shares out 40 pencils between Niamh and Jack in the ratio 3 : 7

How many pencils does

Niamh get

Jack get

+5
Answers (2)
  1. 29 October, 09:32
    0
    20 because you are just splitting it in half + I did that question
  2. 29 October, 09:39
    0
    To solve a ratio you must first figure out how many parts of the ratio you have. In this case the ratio is 3:7 so we add them and get 10 parts (3+7)

    Now that we know the total parts of the ratio we can figure out how much 1 part of the ratio is worth by dividing the total number (40) by the total parts of the ratio (10) 40/10 = 4

    Now that we know each part of the ratio equals 4 we multiply each side of the ratio by 4

    3 * 4 = 12 Niamh got 12 pencils

    7 * 4 = 28 Jack got 28 pencils
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