If $3P = 2Q$ and $2Q = 3R$,then what is $P:Q:R$?

One year ago,the ratio between Ram's and Shyam's salaries was $3:5$. The ratios of their individual salaries of last year to the present year are $2:3$ and $4:5$ respectively. If their total salary for the present year is $Rs. 8600$,find the present salary of Ram (in $Rs.$)?

In a class there are $z$ students. Out of them $x$ are boys. What part of the class is composed of girls?

Three brothers divided ₹ $1620$ among themselves in such a way that the share of the second brother is equal to $\frac{5}{13}$ of the share of the other two combined. What is the share of the second brother?

$x$ varies inversely as the square of $y$. Given that $y = 2$ when $x = 1$. The value of $x$ when $y = 6$ will be equal to:

In a ratio $11: 14,$ if the antecedent is $55,$ the consequent is