1.

From a school 90 boys and 30 girls appeared for a public examination. The mean mark of boys is found to be 45% whereas the mean mark of girls is 70%. What is the average marks % of the school?

Answer»

From a school 90 boys and 30 girls appeared for a public examination. The mean mark of boys is found to be 45% whereas the mean mark of girls is 70%. What is the average marks % of the school?




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