A person goes to a market between 4 p.m. and 5 p.m. When he comes back :

A person goes to a market between 4 p.m. and 5 p.m. When he comes back, he fined that the hour hand and minute hand of the clock have interchange their positions. For how time (approximately) was he out of his house?
(a) 55.38 minutes
(b) 55.48 minutes
(c) 55.57 minutes
(d) 55.67 minutes

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (c) 55.57 minutes

    Anurag Mishra Professor Answered on 19th February 2016.
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