A man, 1.6m tall, walks away from a lamp which is 4m above ground, at the rate of 30m/min.If his shadow increases at the rate of λ m/min, then the value of λ is

A man, 1.6m tall, walks away from a lamp which is 4m above ground, at

1.	A man, 1.6m tall, walks away from a lamp which is 4m above ground, at the rate of 30m/min.If his shadow increases at the rate of λ m/min, then the value of λ is
Answer» A man, $1.6 m$ tall, walks away from a lamp which is $4 m$ above ground, at the rate of $30 m / m i n$ .If his shadow increases at the rate of $λ m / m i n$ , then the value of $λ$ is