The mean marks obtained by seven students group is 226. If the mark – McqOptions

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1.	The mean marks obtained by seven students group is 226. If the marks obtained by six of them are 340, 180, 260, 56, 275 and 307 respectively. Find the markes obtained by the seventh student.
A.	142
B.	164
C.	178
D.	191
Answer» C. 178

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