Physics, asked by avinashyadav661980, 11 months ago

plz slove the question

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Answered by anonymous5235

1

Explanation:

t1 = Distance/ speed

= 120/40

= 3 hours

t2 = distance/ speed

=120/30

=4 hours

total time = 7 hours

total distance = 240 km

avg.speed = 240/7

=34.28 km/h

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