Question

In which of these cases is each stamp worth the most?
7 of the same stamp worth a total of $3.15
8 of the same stamp worth a total of $3.20
10 of the same stamp worth a total of $4.10
16 of the same stamp worth a total of $4.80

Answer 1

for future reference:

to find the worth per stamp, simply divide (total cost) / (# of stamps) for each answer choice and see which one ends up the highest