1.

An empty pipe can empty \[=Speed\times Time\text{ }taken\] of cistern in 20 minutes. In 9 minutes, what part of cistern will be emptied?

A.  \[\left( x+y \right)\]        
B.  \[\left( x-y \right)\]
C.  \[2n=3\]       
D.  \[\left( x-y \right)\]
Answer» E.


Discussion

No Comment Found

Related MCQs