Question

ratio between the speed of boat in still water to the speed of the current is 2:1 total time taken by a man to cover 72 km in up stream and comeback is 32 hours. then find the down stream speed.​

Answer 1

Answer:

u/v=2:1 then ds =3x ans us =1x

32=72/1x+72/3x

32=96/x

x=3

then ds=9 km/hour

Step-by-step explanation: