Two pipes A and B fill at a certain rate.B is filled at 10,20,40,80(10 in 1 hour,20 in 2 hours,40 in 3 hrs and so on). if 1/16 of B is filled in 17 hrs,what time it will take to get completely filled? Options:
A) 20 hrs	B) 21 hrs	C) 22 hrs	D) 23 hrs	E) 24 hrs
1/16 in 17 hrs   so 1/8 in 18 hrs   1/4 in 19 hrs   1/2 in 20 hrs   and complete tank in 21 hrs   ANSWER:21 hrs
<result>B</result>
Two pipes A and B fill at a certain rate.B is filled at 10,20,40,80(10 in 1 hour,20 in 2 hours,40 in 3 hrs and so on). if 1/16 of B is filled in 17 hrs,what time it will take to get completely filled?