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Q.

A man is walking at a speed of 10 km per hour. After every kilometre, he takes rest for 5 minutes. How much time will he take to cover a distance of 5 kilometres?

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a

48 min.

b

50 min.

c

45 min.

d

55 min.

answer is B.

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Detailed Solution

Rest time= Number of rest x Time for each rest

= 4 x 5 = 20 minutes

 Total time to cover 5 km

=510×60minutes + 20 minutes = 50 minutes.

 

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