a bullet train 150 m long is running with a speed of 30 kmph. in what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the bullet train is going? Select the correct option.
A) 23 sec
B) 15 sec
C) 12 sec
D) 11 sec
E) 15 sec
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">36 * 1_000</gadget>
<output>36_000</output>

<gadget id="calculator">36_000 / 3_600</gadget>
<output>10</output>

<gadget id="calculator">150 / 10</gadget>
<output>15</output>

<result>E</result>
a bullet train 150 m long is running with a speed of 30 kmph. in what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the bullet train is going?
divide(150, divide(multiply(add(30, 6), const_1000), const_3600))
e 15 sec speed of the bullet train relative to man = ( 30 + 6 ) kmph = 36 * 5 / 18 m / sec = 30 / 3 m / sec . time taken by the bullet train to cross the man = time taken by it to cover 150 m at ( 30 / 3 ) m / sec = ( 150 * 3 / 30 ) sec = 15 sec