How many sides does a regular polygon have whose interior and exterior angle are in the ratio 2 : 1 ?

x, y, z, u are real numbers such that x : y = y : z = z : u and x : u = 64 : 27. the value of x : z is -

In a ratio which is equal to 7 : 8, if the antecedent is 35, what is the consequent?

A and B are two alloys in which ratios of gold and copper are 5 : 3 and 5 : 11 respectively. If these equally amount of …

Of three positive numbers, the ratio of first and second is 8 : 9, that of second and third is 3 : 4. The product of fir…

The sum of two numbers is 40 and their difference is 4. The ratio of the numbers is = ?

If 0.75 : x :: 5 : 8, then x is equal to:

If (4x<sup>2</sup> - 3y<sup>2</sup>) : (2x<sup>2</sup> + 5y<sup>2</sup>)…