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The average of first 120 even numbers is
Question

The average of first 120 even numbers is

A.

122

B.

121

C.

121.5

D.

120.5

Correct option is B

Given:

First 120 even numbers

Formula Used:

Average = First term+Last term2\frac{\text{First term} + \text{Last term}}{2}​​

Solution:

First even number = 2

120th even number = 2 × 120 = 240

Average = 2+2402=2422=121\frac{2 + 240}{2} = \frac{242}{2} = 121

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