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The average of 9 numbers is 40. If the a...

The average of 9 numbers is 40. If the average of the first five numbers is 38 and the average of the last five numbers is 50, then what is the fifth number?
9 संख्याओं का औसत 40 है | यदि पहली पांच संख्याओं का औसत 38 है तथा अंतिम पांच संख्याओं का औसत 50 है, तो पाँचवीं संख्या कौन सी है?

A

78

B

90

C

80

D

84

Text Solution

Verified by Experts

The correct Answer is:
C
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