Jawapan

2016-03-13T14:11:48+08:00
Talia swims faster than Alina.
Alina = 4022.5 meters per hour
Talia = 6480 meters per hour
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1 mile = 1609 meters.
2.5 miles * 1609 meters / 1 mile = 4022.5 meters per hour

1 minute = 60 seconds
1 hour = 60 minutes

1 hours * 60minutes/ 1hr * 60 seconds/1 min =  3600 seconds in 1 hr.

(1.8 meters / 1 second)  * (3600 seconds/1 hr) = 6480 meters per hr.

Alina = 4022.5 meters per hour
Talia = 6480 meters per hour