Average of sum of 10 consecutive positive numbers is 46.5. What is the average of sum of previous 10 consecutive numbers?
(A) 30.2
(B) 32.5
(C) 33.5
(D) 36.5
(E) 37.5
Let ten consecutive positive numbers be
.
Let previous ten consecutive numbers be
.
(1)
It is given to us that
(2)
Putting equation (2) in (1), we get
Therefore, average of sum of previous ten consecutive numbers
Hence, the answer is (D).
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