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An aeroplane flys around squares whose a...

An aeroplane flys around squares whose all sides are of length `100` miles. If the aeroplane covers at a speed of `100 mph` the first side, `200 mph` the second side `300 mph` the third side and `400 mph` the fourth side. The average speed of aeroplane around the square is

A

`190mph`

B

`195mph`

C

`192mph`

D

`200mph`

Text Solution

Verified by Experts

The correct Answer is:
C
`(c )` `"Average speed"=H.M`
`(4)/((1)/(100)+(1)/(200)+(1)/(300)+(1)/(400))=192`
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