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The mean of the marks scored by 12 stude...

The mean of the marks scored by 12 students of a class is 67.4. If the mean of another class consisting of 15 students is 72.3. find their combined mean?
A. 70.12
B. 69.85
C. 71.23
D. 68.94

A

B

B

D

C

C

D

A

Text Solution

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The correct Answer is:
D
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