If a:b = 3:2, what is (a+b)/(a−b)?
A$5$
B$1$
C$6$
D$2.5$
Answer & Solution
Correct answer: A. $5$
By componendo and dividendo: if a/b = 3/2, then (a+b)/(a−b) = (3+2)/(3−2) = 5/1 = 5.
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