Math, asked by mammunvc1143, 1 year ago

A boy starts moving from A to B at 30 kmph and then come back from B to A at 40 kmph , find his average speed

Answers

Answered by shanthini5343

1

Answer:

Step-by-step explanation:

average speed =(2xy/(x+y))

x=30kmph

y=40kmph

=(2x30x40)/(30+40)

=2400/70

=34.28

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