A train consists of 12 bogies, each bogie is 15 metres long. The train crosses a telegraph post in 18 seconds. Due to some problem, two bogies were detached. The train now crosses a telegraph post in
Train has 12 bogies.
Each bogie is 15 metre long.
∴ Total length of bogie
= 15 × 12 = 180 metre
Since, train crosses in 18 second
∴
=
Due to some problem, 2 bogies were detached
∴ Remaining bogies = 12 –2 = 10
∴ Total length of bogie = 15 × 10 = 150
Thus,