A 1200 m long train crosses a tree in 120 sec, how much time will I take to pass a platform 400 m long?  Choose the most appropriate option.
A) 176 Sec B) 190 Sec C) 178 Sec D) 160 Sec E) 276 Sec
L = S*T   S= 1200/120= 
<gadget id="calculator">1200/120</gadget>
<output>10</output>
10 m/Sec.   Total length (160 Sec)= 1600 m   T = 160 Sec/S   T = 1600/10= 
<gadget id="calculator">1600/10</gadget>
<output>160</output>
160 Sec   Answer:160 Sec
<result>D</result>
A 1200 m long train crosses a tree in 120 sec, how much time will I take to pass a platform 400 m long?