An outlet pipe can empty 3/4 of a cistern in 12 minutes. In 4 minutes, what part of the cistern will be emptied?	Choose the correct choice from the following answers
A) 1/2
B) 1/3
C) 1/4
D) 1/5
E) 1/6
4/12 * 3/4 = 1/4   The answer is 1/4.
<result>C</result>
An outlet pipe can empty 3/4 of a cistern in 12 minutes. In 4 minutes, what part of the cistern will be emptied?