A 400 meter long train crosses a man standing on the platform in 10 sec. What is the speed of the train?
Choose the correct choice from the following answers
A) 144 B) 108 C) 278 D) 126 E) 112
S = 400/10 * 18/5= 
<gadget id="calculator">400/10 * 18/5</gadget>
<output>144</output>
144 kmph   144nswer: 144
<result>A</result>
A 400 meter long train crosses a man standing on the platform in 10 sec. What is the speed of the train?