Question

a man can row upstream 11 km per hour and downstream at 16 km per hour find the man's rate in still water​

Answer 1

Answer:

let speed of man = x

and speed of water =y

according to question

x-y=11 (i)

x+y=16 (¡¡)

Adding (i) &(ii)

2x=27

x=27÷2=13.5 km per hr

y=2.5 km per hr

so speed of man in still water is 13.5km per hr