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a mathmatical examination started at 7:00a.m lasted for 2 and a half hours what time did it end

Question

a mathmatical examination started at 7:00a.m lasted for 2 and a half hours what time did it end

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Solution

The examination started at 7:00 a.m. and lasted for 2 and a half hours.

Step 1: Convert the duration of the examination into minutes. 2 hours is 120 minutes and half an hour is 30 minutes. So, 2 and a half hours is 150 minutes.

Step 2: Add the duration of the examination to the start time.

7:00 a.m. + 2 hours = 9:00 a.m. 9:00 a.m. + half an hour = 9:30 a.m.

So, the examination ended at 9:30 a.m.

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