The sum of the fourth proportional of 4, 5, 16 and the mean proportional of 4, 16, is

Two employees X and Y are paid a total of Rs. 4500 per week by their employer. If X is paid 125 percent of the sum paid to Y, how much is Y paid per week ?

A certain weight (in kg) is divided into two parts such that 5 times the first part added to 11 times the second part makes 7 times the whole weight. The ratio of the first part to the second part is :

The fourth proportional to 5, 8, 15 is:

If P: Q: R = 2:3:4, then find: $\frac{P}{Q}:\frac{Q}{R}:\frac{R}{P}$

Two numbers a and b are in the ratio 3:2 and their sum is 25. The value of a is?

The present age of P and Q are 40 and 33 years respectively. After X years, the ratio of ages of Q and P to will be 5:6. What is value of X?