A fill pipe can fill 2/5 of cistern in 30 minutes in how many minutes, it can fill 4/5 of the cistern?
Choose the correct choice:
A) 48 min B) 63 min C) 25 min D) 30 min E) 60 min
2/5 of the cistern can fill in 30 min   4/5 of the cistern can fill in = 30*5/2*4/5= 
<gadget id="calculator">30*5/2*4/5</gadget>
<output>60</output>
60min   Answer is 60 min
<result>E</result>
A fill pipe can fill 2/5 of cistern in 30 minutes in how many minutes, it can fill 4/5 of the cistern?