A) 16
B) 9
C) 8
D) 17
Correct Answer: D
Solution :
(d): \[{{x}_{1}}+...........{{x}_{8}}=8\times 10=80\] Sum of seven nos. \[=7\times 9=63\] \[\therefore \] excluded no \[=80-60=17\]You need to login to perform this action.
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