Answer:
green and blue marbles are same in number so their ratio will be 1
Explanation:
total marbles = 22
red = 8
blue = 7
green = total - (red + blue) = 22 - (8 + 7) = 22 - 15 = 7
ratio of blue marbles to green marbles =
blue : green
7: 7 = 1
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