यदि x:y=3:1 हो तो (x^3 -y^3 ):(x^3 y^3 )=? – McqOptions

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1.	यदि x:y=3:1 हो तो (x^3 -y^3 ):(x^3 y^3 )=?
A.	15:19
B.	13:14
C.	34:19
D.	12:18
Answer» C. 34:19

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