An outlet pipe can empty 2/3 of a cistern in 12 minutes. In 4 minutes, what part of the cistern will be emptied?  Choose the correct choice from the following:	A) 1/3	B) 2/5	C) 2/7	D) 2/9	E) 3/10
4/12 * 2/3 = 2/9   The answer is 2/9.
<result>D</result>
An outlet pipe can empty 2/3 of a cistern in 12 minutes. In 4 minutes, what part of the cistern will be emptied?