On May 1 this year, Li Ming's family of three set out from Jinan to visit their grandmother. The speed of the bus is 64 kilometers per hour, and it will arrive at 12 hours. When they came back, they t
On May 1 this year, Li Ming's family of three set out from Jinan to visit their grandmother. The speed of the bus is 64 kilometers per hour, and it will arrive at 12 hours. When they came back, they took a six-hour train to Jinan.
64× 12÷6,
=768÷6,
= 128 (km).
A: Train speed128km.