A pipe can empty 2/3rd of a cistern in 12mins. In 5 mins, what part of the cistern will be empty?
Choose the correct choice from the following answers:
A) 2/3
B) 5/18
C) 4/9
D) 3/8
E) 4/7
2/3 ---- 12   ? ----- 5 ==&gt; 5/18   5/18
<result>B</result>
A pipe can empty 2/3rd of a cistern in 12mins. In 5 mins, what part of the cistern will be empty?