The average of 11 observations is 60. If the average of the first five – McqOptions

MCQOPTIONS

1.	The average of 11 observations is 60. If the average of the first five observations is 58 and that of the last five observations is 56, then what is the sixth observation?
A.	85
B.	90
C.	100
D.	110
Answer» C. 100

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