Question 316289
D=RT
360=(X+X+12)3
360=(2X-12)3
360=6X-36
6X=360+36
6X=324
X=324/6
X=54 km/h is Sinem's rate
54+12=66km/h is Ekin's rate.
Proof:
360=(54+66)3
360=120*3
360=360