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A false balance has equal arms. An objec...

A false balance has equal arms. An object weigh X when placed in one pan and Y when placed in other pan, then the weight W of the object is equal to

A

`sqrt(XY)`

B

`(X+Y)/(2)`

C

`(X^(2)+Y^(2))/(2)`

D

`(2)/(sqrt(X^(2)+Y^(2)))`

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Verified by Experts

The correct Answer is:
B
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