He used 7 pints all together because there at 2 cups in each pint and 4 pints in a half a gallon.
Answer:

Step-by-step explanation:
Probability (P) is calculated as
P = 
The first required outcome is a red sweet from a total of 3 + 5 = 8
P( red) = 
There are now 2 red left and a count of 7, since 1 has been eaten, thus
P( second red ) = 
P( red and red ) =
×
=
= 
Box one ratios
Box two 35:2= 70:4
Just write down the question dum dum