Question

Answer fast for 25 points
Only correct answer will be awarded

Answer 1

the distance covered by train is 20 km

Answer 2

let uniform speed be x AND TIME BE Y
NOW
X+ 10= Y -2
Y-X =12 ------(1)
NOW
X-10= Y+3
X-Y=13 --------(2)

NOW USE BOTH EQ AND ADD

X-Y=-12
Y-X= -13
NOW CUT THEM

SO, IT WILL BECAME

-1

SO, NOW X= -1

so, distance covered = 20 km