Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate?

1 mile 1,609 meters

Alina swims about 0.7 miles per hour faster than Talia.

Talia swims about 0.7 miles per hour faster than Alina.

Alina swims about 1.5 miles per hour faster than Talia.

Talia swims about 1.5 miles per hour faster than Alina.

Question

Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate?

1 mile  1,609 meters


Alina swims about 0.7 miles per hour faster than Talia.

Talia swims about 0.7 miles per hour faster than Alina.

Alina swims about 1.5 miles per hour faster than Talia.

Talia swims about 1.5 miles per hour faster than Alina.

anonymous · Answer

The answer to this is D
the reason is that
1.8 x 3600 = 6480
-> Where 3600 = seconds in an hour
So now we convert meters into Miles
Thus we divided 6480 / 1609 = 4.02 miles / hr 

Now we subtract talia's speed with alina's speed
which comes to 4.02 - 2.5 = 1.5 speed difference