The average of an odd number of natural numbers starting from 1 is equal to the ‘a’. What will be the average of all the natural numbers starting from 1 till the mid point?

a

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a + \frac{1}{2}

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a + 1

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\frac{(a + 1)}{2}

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Solution

The correct option is D $\frac{(a + 1)}{2}$

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