If the ratio of the speed of the boat and speed of the current is 17 : 8. Boat moves in the direction if current in 5 hours. Find the time taken by boat to come back.
1
\(13{ 8 \over 9}\)hours
2
1\(14{ 1 \over 9 }\) hours
3
\(11 { 1 \over 9}\)hours
4
\(16 { 1 \over 13}\)hours