Question

A train $110$ m long takes three seconds to pass a standing man. How long is the platform if the train passes through it in $15$ seconds moving with the same speed?

• A. $440$ m
• B. $400$ m
• C. $550$ m
• D. $450$ m

Answer 1

The correct option is A $440$ m

Speed of the train $=\frac{110}{3}m/s$
$\therefore$ Length of the platform = Speed of train $\times$ Time taken to pass the platform $=((\frac{110}{3}\times 15)-110)m=440m$