If a, b and c are numbers such that a/b = 3 [a over b equals 3] and b/c = 7 [b over c equals 7] then (a+b)/ (b+c) [the quantity a plus b over the quantity b plus c] is equal to which of the following?
W) 7/2 [seven halves]
X) 7/8 [seven-eighths]
Y) 3/7 [three-sevenths]
Z) 1/7 [one-seventh]
✔️Answer:W) 7/2
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