E
Editor
Sep 18, 2022
If a+b=3(c+d), which of the following is the average of a, b, c and d?
Difficulty: Easy
A:
c+d/4
B:
3(c+d)/4
C:
c+d/2
D:
c+d
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ID: 63273db5ca83163ac3a0acd9