Solve the Problem. Round as Appropriate

Multiple Choice

Solve the problem. Round as appropriate.
-The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 60 seconds are required to make a 3-by-5 enlargement, find the time required for a 5-by-6
Enlargement.

A) 150 sec
B) 90 sec
C) 120 sec
D) 180 sec