A) 71
B) 75
C) 72
D) 78
Correct Answer: D
Solution :
Sum of 25 results \[=18\times 25=450\] Sum of first 12 results \[=14\times 12=168\] Sum of last 12 results \[=17\times 12=204\] \[\therefore \] 13th result \[=450-204-168\mathbf{=78}\]You need to login to perform this action.
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