A train 250 m long passed a pole in 25 sec. How long will it take to pass a platform 650 m long?  Choices:	A) 78	B) 43	C) 51	D) 66	E) 90
Speed = 250/25= 
<gadget id="calculator">250/25</gadget>
<output>10</output>
10 m/sec.   Required time= (250 + 650)/10= 
<gadget id="calculator">(250 + 650)/10</gadget>
<output>90</output>
90 sec.   Answer: 90
<result>E</result>
A train 250 m long passed a pole in 25 sec. How long will it take to pass a platform 650 m long?