A train speeds past a pole in 22 seconds and a platform 140 m long in 33 seconds. Its length is?
Answers:
A) 280 B) 260 C) 300 D) 290 E) 270
Let the length of the train be x meters and its speed be y m/sec.   They, x / y = 22 =&gt; y = x/22   x + 140 / 33 = x / 22   x = 280 m.   280nswer:280
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A train speeds past a pole in 22 seconds and a platform 140 m long in 33 seconds. Its length is?