A man 2 metres high, walks at a uniform ...

A man 2 metres high, walks at a uniform speed of 5 km per hour away from a lamp post, 6 metres high. The rate at which the length of his shadow increases is

A

1km/hr

B

2.5 km/hr

C

4 km/hr

D

3 km/hr

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The correct Answer is:

b

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