Answer:
315 kilometers
Step-by-step explanation:
diba 90 km per hour sya tas from 6:30am to 10:00 am meaning 3hours and 30minutes sya nagbyahe. 3hours 30 minutes is equal to 3.5hours. Yung bilis raw ng bus is 90km/hour so i multiply lang yung 90 sa 3.5 which is 315