Question No.: 170
Pipe A and B together can fill an empty tank in 8/5 hours. Pipe B alone takes 6 hours more than the time taken by pipe A
alone to fill the tank. If Pipe B was opened for 2.5 hours and then closed, what portion of the tank will remain empty?
A) 3/4
B) 13/16
C) 11/16 D) 15/16 E) 5/16
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Option A is correct answer and plz don't forget to mark as me brainallist.
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