A fill pipe can fill 1/2 of cistern in 25 minutes. In how many minutes, it can fill 1/2 of the cistern?  Choose the most appropriate option
A) 10 min  B) 15 min  C) 20 min  D) 25 min  E) 30 min
Required time = 25*2*1/2= 
<gadget id="calculator">25*2*1/2</gadget>
<output>25</output>
25 minutes   Answer is 25 min
<result>D</result>
A fill pipe can fill 1/2 of cistern in 25 minutes. In how many minutes, it can fill 1/2 of the cistern?