The mean score of 7 boys and 16 girls is 49. If the scores of the boys are 42,85,47,29,58,54and 72, find the mean score of the girls

Step-by-step explanation:

Given

Required

Mean of girls

The mean of the boys and girls is calculated as:

This gives:

So, we have:

Cross multiply

Subtract by 387

The mean of girls is:

ok

step-by-step explanation:

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step-by-step explanation:

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