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Ten Green Bottles

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Wonky Watches

Age 7 to 11 Challenge Level:

Mandeep's watch loses two minutes every hour.
Adam's watch gains one minute every hour.
They both set their watches from the radio at 6:00 a.m. then start their journeys to the airport. When they arrive (at the same time) their watches are $10$ minutes apart.

At what time (the real time) did they arrive at the airport?