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Let, n ≥ 1, be an arithmetic progression with first term 2 and common difference 4. Let Mn be the average of the first n terms. Then the sum ∑n=110 Mn = 

(a) 110

(b) 335

(c) 770

(d) 1100

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Best answer

The correct option is (a) 110.

A.P  an​  n ≥ 1

First term a1​ = 2

Common difference d = 4

Mn​ =  Average of first n terms.

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