The number that is to be added to $10 \%$ of $320$ to have the sum as $30 \%$ of $230$ is

If $10 \%$ of $x$ is $3$ times $15 \%$ of $y,$ then find $x: y.$

$A$ student has to obtain $33 \%$ of the total marks to pass. He got $125$ marks and failed by $40$ marks. The maximum marks are

$0.005 = (-?-)*$

If the numerator of a fraction is increased by $150 \%$ and the denominator of the fraction is increased by $300 \%$,the resultant fraction is $\frac{5}{18}$. What is the original fraction?

If $35 \%$ of a number is $175,$ then what percent of $175$ is that number (in $\%$)?