a train 150 m long running at 72 kmph crosses a platform in 20 sec. what is the length of the platform?
Choose the most appropriate option:
A) 443 m	B) 354 m	C) 450 m	D) 350 m	E) 250 m
<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">72 * (5/18)</gadget>
<output>20</output>

<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<gadget id="calculator">400 - 150</gadget>
<output>250</output>

<result>E</result>
a train 150 m long running at 72 kmph crosses a platform in 20 sec. what is the length of the platform?
subtract(multiply(20, multiply(72, const_0_2778)), 150)
"e 250 e = 72 * 5 / 18 = 20 = 400 â € “ 150 = 250"