15 संख्याओं का औसत 18 है। प्रथ – McqOptions

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1.	15 संख्याओं का औसत 18 है। प्रथम 8 का औसत 19 एवं अन्तिम 8 का औसत 17 है, तो 8वीं संख्या क्या है?
A.	10
B.	16
C.	14
D.	18
Answer» E.

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