sandy wrote:
Mr. Gifford wishes to put 372 eggs into cartons that can hold 12 eggs each. If he has 50 empty cartons and completely fills as many of them as possible with the 327 eggs, how many of the cartons will remain empty?
(A) 12
(B) 15
(C) 19
(D) 28
(E) 31
Here total eggs that can be filled in 50 cartons = 50 * 12 = 600
But Mr Gifford has only 372 eggs, so 600-372 = 228 places are left empty.
Since 1 cartoon holds = 12eggs
So 228 places will hold = \(\frac{228}{12}\)= 19 cartons