Calculate the loss on selling 50 shares of stock originally bought at 133/4 and sold at 12.

a. $600.00
b. $87.50
c. $687.50
d. $80.50

Here is the solution of the given problem above:
The first thing we should do is to multiply 50 and 13 3/4 
13 3/4 is equivalent to 13.75 .
So, we then multiply 
50 x 13.75  and we get 687.50.
so, $687.50 was the amount spent on the stock. 
Now, lets find out how much they sold them for:
What we do is multiply 12 and 50 
50 x 12 would be 600
We can find out the loss by subtracting 
$687.50 - $600 and that gives us $ 87.50.
Therefore, the amount that is loss in selling is $87.50. The correct answer would be option B. Hope this answer helps.