SOLUTION: Paul, joey and Matt have to catch the train back to school at 5:00 pm. They want to tour the Air and Space museum for 1 hour and 45 miuntes, then spend 30 minutes in the gift shop

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Question 922809: Paul, joey and Matt have to catch the train back to school at 5:00 pm. They want to tour the Air and Space museum for 1 hour and 45 miuntes, then spend 30 minutes in the gift shop, and save 20 minutes to walk to the train. what time should they start the tour?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+60+%2B+45+%2B+30+%2B+20+=+155+
+155%2F60+=+2+%2B+35%2F60+
------------------------
They need to start 2 hrs and 35 min before
the train leaves
+5+-+2+=+3+
3 PM
and
+3+-+35%2F60+=+2+%2B+25%2F60+
They should start the tour at 2:25 PM
check:
2:25 + 2 = 4:25
and
4:25 + 35 = 5:00
OK