# A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?

A. 65 sec

B. 89 sec

C. 100 sec

D. 150 sec

**Answer: Option B **

__Solution(By Examveda Team)__

$$\eqalign{
& {\text{Speed}} = {\frac{{240}}{{24}}} \,{\text{m/sec}} = 10\,{\text{m/sec}} \cr
& \therefore {\text{Required}}\,{\text{time}} \cr
& {\text{ = }}\, {\frac{{240 + 650}}{{10}}} \,{\text{sec}}. \cr
& = 89\,sec. \cr} $$
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