Given that the price of the eggs is reduced by 40%.
Actual reduction (savings) in price for every $ 50 spent = 50 * (40/100) = $ 20
And for this $ 20 saved (reduction in price), the women got 64 more eggs.
$ 20 --- 64 eggs
? $ --- 12 eggs (since we are interested in dozen eggs)
Reduced price per dozen eggs X = ( ( 12 * 20 ) / 64 ) = $3.75
So, with the discounted price, the women saves $3.75, for every dozen eggs purchased.
Option: 2