W is directly proportional to U. If W =5 when U = 3. Find U when W =$\tfrac{2}{7}$

If p varies inversely as the square of q and p = 8 when q = 4, find when p = 32

If x – 3 is directly proportional to the square of y and x = 5 when y = 2, find x when y = 6

$W\propto {{L}^{2}}$and W = 6 and L = 4, if L = $\sqrt{17}$, find W

If p varies inversely as cube of q and q varies directly as square of r. What is the relationship between p and r

The time taken to do a piece of work is inversely proportional to the number of men employed. If ity takes 30 men to do a  piece of work in 6days, how many men are required to do the work in 4 days

The length L of a simple pendulum varies directly as the square of its period T. If a pendulum with period 4 sec. is 64cm.long, find the length of a pendulum whose period is 9sec.

y is inversely proportional to x and y = 4 when x = $\frac{1}{2}$. Find x when y =10

The length a person can jump is inversely proportional to his weight. If a 20kg person can jump 1.5m. Find the constant of proportionality

x varies directly as the product of u and v and inversely as their sum. If x =3 when u = 3 and v =1. What is the value of x if u = 3 and v =3