A train 280 m long passed a pole in 28 sec. How long will it take to pass a platform 650 m long?
Choose the correct choice from the following
A) 93 sec
B) 89 sec
C) 54 sec
D) 27 sec
E) 22 sec
Speed = 280/28= 
<gadget id="calculator">280/28</gadget>
<output>10</output>
10 m/sec.   Required time= (280 + 650)/10= 
<gadget id="calculator">(280 + 650)/10</gadget>
<output>93</output>
93 sec.   93 secnswer: 93 sec
<result>A</result>
A train 280 m long passed a pole in 28 sec. How long will it take to pass a platform 650 m long?