A train speeds past a pole in 25 seconds and a platform 500 m long in 35 seconds. Its length is: Choose the correct choice from the following:
A) 1150 m  B) 2250 m  C) 1450 m  D) 1350 m  E) 1250 m
Let the length of the train be x meters and its speed be y m/sec.   They, x / y = 25 =&gt; y = x/25   x + 500 /35 = x / 25   x = 1250 m.   Answer: Option 1250 m
<result>E</result>
A train speeds past a pole in 25 seconds and a platform 500 m long in 35 seconds. Its length is: