A tired worker slept at 6.45 p.m. If he rose at 12 noon, for how many hours did he sleep?
A
5 hours 15 min.
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B
17 hours 15 min.
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C
12 hours
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D
6 hours 45 min.
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Solution
The correct option is B 17 hours 15 min. As mentioned, he slept at 6:45 pm and woke up at 12 noon.So from 6:45 pm to 6:45 am it is 12 Hr + 5.15 Hr from 6:45 am to 12 noon.