This the concept of algebra, let the amount of milk m and that of caramel be c. Total amount of chocolate will be p.
The amount of caramel=3 pounds;
The amount of milk=90%=0.9/0.1*3=27 pounds milk
Therefore the total amount of milk in candy will be:
m=0.9p
The total amount of caramel will be:
c=0.9p
Percentage of Caramel in chocolate is 10%. The amount of milk will therefore be:
0.9/0.1*3=27 pounds