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Recent questions tagged arithmetic-mean

5 votes
3 answers
2
ISRO2011-67
The arithmetic mean of attendance of $49$ students of class $\text{A}$ is $40%$ and that of $53$ students of class $\text{B}$ is $35%.$ Then the percentage of arithmetic mean of attendance of class $\text{A}$ and $\text{B}$ is $27.2\%$ $50.25\%$ $51.13\%$ $37.4\%$
The arithmetic mean of attendance of $49$ students of class $\text{A}$ is $40%$ and that of $53$ students of class $\text{B}$ is $35%.$ Then the percentage of arithmetic ...
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