The probability that a number selected at random from the first 50 natural numbers is a composite number is?  Choose the correct choice from the following choices:
A) 157	B) 197	C) 152	D) 1518	E) 112
Speed=(60 * 5/18) m/sec = (50/3) m/sec Length of the train = (Speed x Time) = (50/3 * 9)= 
<gadget id="calculator">(50/3 * 9)</gadget>
<output>150</output>
150 m.   Answer: 1518
<result>D</result>
The probability that a number selected at random from the first 50 natural numbers is a composite number is?