Respuesta :
let the speed of train a is x and that of train b is y
y-x=6
let the time taken to reach this distance is t
xt=200
yt=230
x/y=20/23
by solving the to equations simultaneously
x=40 mph
y=46 mph
y-x=6
let the time taken to reach this distance is t
xt=200
yt=230
x/y=20/23
by solving the to equations simultaneously
x=40 mph
y=46 mph