Question

A car covered a certain distance at 90 kmph and returned back at 60 kmph. Find its average speed for the entire journey.
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Answer 1

Answer:

Correct answer : 72kmph

Step-by-step explanation:

as we know the avg velocity formula is =

$2v1v2 \div v1 + v2$

this avg velocity formula so avg velocity will be

$(2 \times 90 \times 60) \div 150$

hence avg velocity = 72kmph

Answer 2

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