यदि A और B का अनुपात 4ः5 है और उ – McqOptions

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1.	यदि A और B का अनुपात 4ः5 है और उनके वर्गों का अन्तर 81 है। तो A का मान कितना है -
A.	45
B.	12
C.	36
D.	15
Answer» C. 36

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