speed of boat in still water ---- x km/h
speed of current ------- y km/h
x+y = 30
x-y = 16
add them
2x = 46
x = 23
then y = 7
speed in still water is 23 km/h, speed of current is 7 km/h
A boat can travel 16 km/h against the current.The same boat can travel 30 km/h with the current.find the rate of the boat in still water and the rate of the current.
Could someone help me.it seams like an easy problem, but I am not getting there.Thank YU very much.
2 answers
30
1 answer