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Question: a school library is open for 5 hours 15 minutes...

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A school library is open for 5 hours 15 minutes per day on Monday, Wednesday and Friday, and for 6 hours 25 minutes per day on Tuesday and Thursday. What is the total time the library is open during the school week?

 

When it is 12 noon in Sydney, it is 8 am in Perth on the same day. A plane leaves Sydney at 2:30 pm Sydney time and flies to Perth. The flight takes 4 hours and 10 minutes.

What is the time in Perth when the plane arrives?

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