Which fraction among $\frac{2}{3}$,$\frac{4}{5}$,and $\frac{7}{11}$ is the largest?

$A$ piece of cloth measured with a metre stick,which is $1 \ cm$ short,is found to be $100 \ m$ long. Reckoning the metre stick as being correct,what is the actual length of the cloth in $cm$?

Find the least number which must be subtracted from $9269$ so that the resulting number is exactly divisible by $73$.

$2^{16}-1$ is divisible by

If doubling a number and adding $20$ to the result gives the same answer as multiplying the number by $8$ and taking away $4$ from the product,the number is

In a college,$\frac{1}{5}$ of the girls and $\frac{1}{8}$ of the boys took part in a social camp. The fraction of the total students in the college who took part in the camp is: