Answer: The value of the firm is $16 million.
For this question we use the Modigliani-Miller Proposition I which states that the value of the firm is same irrespective of the amount of equity and debt in its capital structure, ignoring taxes.
Amount borrowed for buyback = $1m
No. of shares bought back = 2500
Value per share = $
Shares outstanding before buyback = 40000 shares
Shares bought back = 2500 shares
Shares outstanding after buyback =
Next we calculate the value of the firm before and after buyback of shares.
The value of the firm before buyback comprises of only 40000 equity shares. There is no debt. Hence,

The value of the firm after buyback will be




Since value of the firm before and after buyback of shares is the same, we can say that the Modigliani-Miller Proposition I without taxes holds and the value of the firm is $16 million.