The ratio of the speed of the current and the speed of the boat in still water is 3 : 13. The boat goes upstream for \(2 {2\over 3}\) hours and then returns to the same point. How much time (in hours) will it take on the return journey?
1
\(1{3\over 4}\)
2
\(1{1\over 4}\)
3
\(1 {1 \over 2}\)
4
\( 1{2 \over 3}\)