she sees boy 15 m ahead of her walking same dir. girl goes 5 m/s boy goes 2 m/s how far does she go to catch b

Question

dir. means direction b means boy

Answer 1

i think its 5 meters

Answer 2

x1=length girl walks from origin
x2=length boy walks from origin
x1=x2+15m
time is the same for each
and tboy=x2 divided by 2m/s
tgirl=x1 divide by 5m/s
so tboy=tgirl, this must be true.
so x2/2=x1/5 or by rule of substitution x2/2=(x2+15)/5
x2=25

25 meters

Answer 3

10.2 meters