Question

what will be Raj's speed in still water as well as speed of the river if he can go downstream at 18 km per hour and upstream at 10 kilometre per hour (pls give correct answers dont type unnecessary things)​

Answer 1

Answer:

Raj's speed in still water is 14 per hours

Step-by-step explanation: u (upstream) = 10kmph

                                             d (downstream) = 18kmph

Speed of Raj in still water =  1(u+d)/2

=>  1(10+18)/2

=28/2

= 14 kmph

Raj's speed in still water is 14 per hours