A car drives from a to B at the speed of 65 kilometers per hour. It takes five seventh of the whole journey in three hours. How many kilometers does the car have to travel to get there

A car drives from a to B at the speed of 65 kilometers per hour. It takes five seventh of the whole journey in three hours. How many kilometers does the car have to travel to get there

3÷5/7=21/5
65x (21 / 5-3) = 65x6 / 5 = 78 km
A: 78 kilometers more