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For 2 hours, Lia drove at the speed of 60 mph, and for the next 3 hours, at the speed of 50 mph. What was Lia's average speed during this trip?
A)53 MPH
B)54 MPH
c)55 MPH
D)56 MPH
E)57 MPH

Respuesta :

choixongdong

For 2 hours, Lia drove at the speed of 60 mph= 2 x 60 = 120 miles for 2 hours

The next 3 hours, at the speed of 50 mph = 3 x 50 = 150 miles for next 3 hours

Total 5 hours = 120 + 150 = 270 miles

Average = 270 miles / 5 hours = 54 miles per hour (MPH)

Answer:

B) 54 MPH