**at_answer_text_math**

**at_explanation_text_math8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed8 hours the time It took to reach the other port and 25 km per hour is its average speed**