A) 9
B) 10.5
C) 11
D) 11.5
Correct Answer: C
Solution :
Sum of three new numbers \[=8\times 8.5-7\times 5\] \[=68-35=33\] \[\therefore \] Required average \[=\frac{33}{3}=11\]You need to login to perform this action.
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