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If X^2+Y^2=100 and X : Y= 4 : 3, then wh...

If `X^2+Y^2=100` and X : Y= 4 : 3, then what is the value of `X^2-Y^2` ?
यदि `X^2+Y^2=100` तथा X : Y= 4 : 3 है, तो `X^2-Y^2` का मान क्या होगा ?

A

18

B

28

C

36

D

24

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