Bea the bee sets out from her hive, H, and flies south for 1 hour to a field, F. She spends 30 minutes in the field, and then flies 45 minutes west to a garden, G. After spending 1 hour in the garden, she flies back to her hive along a straight line route. Bea always flies at the same constant speed. What is the total length of time, in minutes, that she is away from her hive?
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