यदि 7 x 9 तथा -4 y 1 तो (x +y ) का अधिकत – McqOptions

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1.	यदि 7 x 9 तथा -4 y 1 तो (x +y ) का अधिकतम मान ज्ञात करें ?
A.	10
B.	11
C.	14
D.	45
Answer» B. 11

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