Let the time taken by car B to reach destination is T h.
So, the time taken by car A to reach destination is (T + 2) h.
Now, S1T1 = S2T2
⇒ 30(T + 2) = 45 x T
⇒ 30T + 60 = 45T
⇒ 15T = 60
∴ T = 4 h
Now, distance between starting point and destination = S2T2
= 45 x 4 = 180 km
