A train having length 150 m passes a platform of 550 m length. The time taken for it is 56 seconds. In how much time will this train take to pass the platform of 250 m length?
Answer & explanation
Correct answer: option 1
Speed = \(\frac{Distance }{Time }\)
Speed = \(\frac{\text{150 + 550}}{56 }\) -------1st equation
Speed = \(\frac{\text{150 + 250}}{Time }\) -------2nd equation
From 1st and 2nd equation it can be deduced that:
\(\frac{\text{150 + 550}}{56 }\) = \(\frac{\text{150 + 250}}{Time }\)
\(\frac{\text{700}}{56 }\) = \(\frac{\text{400}}{Time }\)
Time = \(\frac{\text{400}}{12.5 }\)
Time = 32 seconds