Question

Meenu drives her car for 3/2 hours with a constant speed of 66km/hr and then foe another 45 minutes with a constant speed of 80km/hr.What was her average speed?​

Answer 1

Answer:

1.44

Step-by-step explanation:

time1=3/2×60=1hr and 30min

time 2=45 min

average speed=total distance/total time

average speed=66×3/2+80×3/4

-----------------------

2-15

=99+60

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135

159/135=1.44(approx)