A) 58
B) 56
C) 50
D) 46
Correct Answer: B
Solution :
Let the new observation be x. Then, \[\frac{x+6\times 45.5}{7}=47\] \[\Rightarrow \] \[x+273=47\times 7=329\] \[\Rightarrow \] \[x=329-273=56\]You need to login to perform this action.
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