The greatest value among $16 \frac{2}{3} \%$,$6 \frac{2}{3} \%$,and $0.3$ is:

In an examination,$37 \frac{1}{2} \%$ of the candidates were girls. If $75 \%$ of the boys and $62 \frac{1}{2} \%$ of the girls passed,and $342$ girls failed,find the number of boys who failed.

$1200$ boys and $650$ girls appeared in an examination. If $70 \%$ of boys and $40 \%$ of girls failed,find the approximate percentage of passed students.

Rajeev buys goods worth $₹ 6650$. He gets a rebate of $6 \%$ on it. After getting the rebate,he pays sales tax @ $10 \%$. Find the amount he will have to pay for the goods.

Ram gets $20\%$ marks more than Girish. Girish gets $20\%$ more than Sanjay. Sanjay gets $20\%$ less than Aditya. If Ram got $576$ marks and the total marks were $800$,then what marks did Aditya get?

The sum of two numbers is $\frac{28}{25}$ of the first number. The second number is what percent of the first (in $\%$)?