SOLUTION: consider the proportion of a:b:c = 3:1:5 what is the value of: 2a + 3b / 4b + 3c i don't understand the question

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Question 345863: consider the proportion of a:b:c = 3:1:5 what is the value of:
2a + 3b / 4b + 3c

i don't understand the question
Answer by Fombitz(32388) About Me  (Show Source):