Ini soalnya mudah ayo jawab

v = 75km/jam
s = 120km
t = 40 mnt = 40/60 = 2/3 jam
s = v x t
= 75 x 2/3
= 150/3
=50km

sisa jarak yang harus ditempuh = 120 - 50 = 70km

75:60×40=50 km.
120km-50km=70km