If "basis points" are defined so that $1 \%$ is equal to $100$ basis points,then by how many basis points is $82.5 \%$ greater than $62.5 \%$?

If $8 \%$ of $x = 4 \%$ of $y,$ then $20 \%$ of $x$ is:

If $A$'s height is $40 \%$ less than that of $B$,how much percent is $B$'s height more than that of $A$?

An ore contains $23 \%$ copper. To get $69 \text{ kg}$ of copper, the quantity of the ore required is: (in $\text{ kg}$)

In an examination,$34 \%$ of students failed in Mathematics and $42 \%$ failed in English. If $20 \%$ of the students failed in both the subjects,then the percentage of students who passed in both the subjects was:

$1$ quintal $25$ $kg$ is what percent of $1$ metric tonne?