Asha's monthly income is $60 \%$ of Deepak's monthly income and $120 \%$ of Maya's monthly income. What is Maya's monthly income,if Deepak's monthly income is Rs. $78000$?

What is $15$ percent of Rs. $34$?

From a container having pure milk,$20 \%$ is replaced by water and the process is repeated thrice. At the end of the third operation,the milk is: (in $\%$ pure)

An inspector rejects $0.08 \%$ of the meters as defective. How many will he examine to reject $2$?

In a school there are $250$ students,out of whom $12$ per cent are girls. Each girl's monthly fee is $₹ 450$ and each boy's monthly fee is $24$ per cent more than that of a girl. What is the total monthly fee of girls and boys together?

$1200$ boys and $650$ girls appeared in an examination. If $70 \%$ of boys and $40 \%$ of girls failed,find the approximate percentage of passed students.