Which positive number should replace both question marks in the following equation?
​$$\frac{?}{11} = \frac{275}{?}$$​

Correct option is A

Given: ​

​$$\frac{?}{11} = \frac{275}{?}$$ 

Solution: ​

​$$\frac{?}{11} = \frac{275}{?} \\ \ \\ (?)^2 = 275\times 11 \\ \ \\ ? = \sqrt{275\times 11} \\ \ \\ ? = 55$$​​