a train moves with a speed of 108 kmph. its speed in metres per second is:
Answers.
A) 10.8	B) 18	C) 30	D) 38.8	E) none of these
<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">108 * (5/18)</gadget>
<output>30</output>

<result>C</result>
a train moves with a speed of 108 kmph. its speed in metres per second is:
multiply(108, const_0_2778)
"explanation : 108 kmph = ( 108 x 5 / 18 ) m / sec = 30 m / s . answer : c"