A group of 210 students appeared in some test. The mean of 1/3rd of st – McqOptions

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1.	A group of 210 students appeared in some test. The mean of 1/3rd of students is found to be 60. The mean of the remaining students is found to be 78. The mean of the whole group will be:
A.	80
B.	76
C.	74
D.	72
Answer» E.

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