Seudónimo Seudónimo

10-11-2016
Mathematics

contestada

A train traveled 240 km in 2.5 hours and then slowed down traveling the final 180 km in 2 hours. What was the train's average speed in km/h?

A. 96 km/h

B. 90 km/h

C. 84.7 km/h

D. 93.3 km/h

Respuesta :

MohamedSharif MohamedSharif

10-11-2016

average speed=Total Distance Covered\Total time taken
T.D=240+180=420
T.T=2.5+2=4.5
420\4.5=93.3 km\h
answer=D

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