If p + q = 2(r + s) which of the following is the average of p, q, r and s in terms of r and s?
A. r + s
B.
(3(r + s))/4
C.
(r + s)/2
D.
(r + s)/4
E.
(r + s)/8
সঠিক উত্তরঃ
B.
(3(r + s))/4
Explanation:

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