If $60 \%$ of the students in a school are boys and the number of girls is $812$,how many boys are there in the school?

If $40 \%$ of a number is equal to two-third of another number,what is the ratio of the first number to the second number?

$5 \%$ of $(25 \%$ of $₹ 1600)$ is

$0.025$ in terms of rate per cent is:

If $18 \%$ of a number is $720,$ then what is $81 \%$ of the same number?

In an examination,a student must get $36 \%$ marks to pass. $A$ student who gets $190$ marks failed by $35$ marks. The total marks in that examination is