Question

78. A man rows down a river 15 km in 3 hrs with the
stream and returns in 7 hrs. The rate at which he rows
in still water is-
(a) 2.5 km/h
(b) 1.5 km/h
(c) 3.5 km/h
(d) 4.5 km/h​

Answer 1

Answer:

option (c) i hope you understood this