2009 Grade 8 CEMC Gauss Problems/Problem 16

Problem

When it is 3:00 p.m. in Victoria, it is 6:00 p.m. in Timmins. Stefan’s flight departed at 6:00 a.m. local Victoria time and arrived at 4:00 p.m. local Timmins time. How long, in hours, was his flight?

Solution 1

From the first sentence of the problem, we can realize that Timmins is hours ahead. This means that am in local Victoria time is the same thing as am in local Timmins time.

hours after am is pm, and hours after that is pm, so his flight was hours long.

~anabel.disher

Solution 1.1

We can also use the time conversion, but convert Timmins time to Victoria time to solve the problem.

pm in local Timmins time would be pm in local Victoria time≥

hours after am is pm, and hour after that pm, so his flight was hours long.

~anabel.disher