Question

Late boat can row 120km do constream and come back to original position in 24 hours the ratio of the speed of stream to boat in still water is 2:3. What is the speed speed of boat in still water ? and​

Answer 1

Answer:

t₂ = 7 a+2d=7

And,

tu = 3 from Ⓒ & C

a+3d = 3

d+ 2d = 7 -p+ 3d = 3

-d=4 /d = -4/ Put in (1)

at 2(-4)=7 a = 7+8 [a=15].