2005 CEMC Gauss (Grade 7) Problems/Problem 10

Problem

In relation to Smiths Falls, Ontario, the local time in St. John’s, Newfoundland, is minutes ahead, and the local time in Whitehorse, Yukon, is hours behind. When the local time in St. John’s is 5:36 p.m., the local time in Whitehorse is

1:06 p.m. 2:36 p.m. 4:06 p.m. 12:06 p.m. 10:06 p.m.

Solution

When it is 5:36 p.m. in St. John’s, it is minutes or hours earlier in Smiths Falls, so it is 4:06 p.m. in Smiths Falls. When it is 4:06 p.m. in Smiths Falls, it is 3 hours earlier in Whitehorse, so it is 1:06 p.m. in Whitehorse. The answer is .