Question

if a car travels 150 km in 2 hours and 200 km in 5 hours. what is it's average speed
(options)
a.50km/hour
b.100km/hour
c.175km/hour​

Answer 1

150 +200 kms in 7 hours

350 km in 7 hours

average Speed = 350 ÷70

= 50

ans is (a) 50 km/h

Answer 2

Answer:

speed = distance/ time

average speed =speed of first body + speed of second body/2

Step-by-step explanation:

speed 1 = 150km/2hour

=75 kmph

speed 2 =200km/5hour

=40 kmph

average speed=75+40/2

=115/2

=57.5 kmph