Question

Answer it fast with explanation
by steps.​

Answer 1

Explanation:

speed of the car= 60km/h

time taken. = distance/ speed

v. = 30/60

= 1/2 hours

(next thirty km)

speed. = 40km/ h

time. = d/s

=30/40 h

= 45 mins

total time = 30 +45 mins

75 mins=1h 15mins

average speed= (60+40)/2

50km/h

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Answer 2

Answer:

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