COCO:
\(\frac{2}{3}l\) water: 1.5£ , whereas 73% like it
SAKA:
\(\frac{1}{3}l\) water: 1.33£ , whereas 79% like it
Which water do you think would be profitable? Justify.
. . . correction:
An example,
AKA has for \(1l\) 2£ , whereas 33% like it and
EKA has for \(1l\) 1.75£ , whereas 30% like it .
To buy EKA would be more profitable because the difference (33% - 30% =) 3% has a worth of 0.3£,
1.75£ + 0.3£ = 2.05£ . Change :
AKA has for \(1l\) 2£ and
EKA has for \(1l\) 2.05£ .
EKA is profitable.