If it takes a tub 6 minutes to drain 5/7 of its content, how much more time will it take for the tub to be empty?	Select:
A) 48 seconds
B) 1 minute, 12 seconds
C) 1 minute, 50 seconds
D) 2 minutes, 24 seconds
E) 4 minutes, 12 seconds
If 5/7 of tub's content is drained 2/7 th of tub still needs to be drained.   If it takes 6 minutes to drain 5/7 th of tub it takes 6*(7/5) minutes to drain the entire tub and 6*(7/5)*(2/7) min to drain 2/7 th of the tub which is 2.4 minutes or 12/5 minutes or 2 minute 24 seconds   So answer is 2 minutes, 24 seconds
<result>D</result>
If it takes a tub 6 minutes to drain 5/7 of its content, how much more time will it take for the tub to be empty?