In a bag containing red, green and pink tokens, the ratio of red to green tokens was 5 : 12 while the ratio of pink to red tokens was 7 : 15. What was the ratio of green to pink tokens?
Red:Green = 5:12 -------A
Pink:Red =7:15
Multiply equation A with 3
Red:Green = 15:36
=>Pink : Red : green =7:15:36
=>green : Pink = 36:7
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