The price of a shirt is increased by $15 \%$ and then reduced by $15 \%$. The final price of the shirt

If $x$ is $90 \%$ of $y,$ then what per cent of $x$ is $y$?

$A$ person who spends $66 \frac{2}{3} \%$ of his income is able to save $₹ 1200$ per month. His monthly expenses (in $₹$) are

In an examination,there are three papers and a candidate has to get $35 \%$ of the total to pass. In one paper,he gets $62$ out of $150$ and in the second $35$ out of $150$. How much must he get,out of $180$,in the third paper to just qualify for a pass?

If the numerator of a fraction is increased by $150 \%$ and the denominator of the fraction is increased by $350 \%,$ the resultant fraction is $\frac{25}{51},$ what is the original fraction?

$405$ toffees were distributed equally among children in such a way that the number of toffees received by each child is $20 \%$ of the total number of children. How many toffees did each child get?