What is the value of the following expression?

​$$\frac{\sqrt{225}}{14}\times\frac{\sqrt{196}}{22}\times\frac{\sqrt{484}}{15}$$​​

Correct option is B

Given:

​$$\frac{\sqrt{225}}{14}\times\frac{\sqrt{196}}{22}\times\frac{\sqrt{484}}{15}$$ 

Formula used:

​$$\begin {array}{|c|c|} \hline \textbf{Operation preference wise} & \textbf{Symbol} \\ \hline Brackets &[],{}, () \\ \hline Orders, of & ² (power), √ (root) , of \\ \hline Division & ÷ \\ \hline Multiplication & × \\ \hline Addition & + \\ \hline Subtraction & - \\ \hline \end{array}$$

Solution:

​$$\frac{\sqrt{225}}{14}\times\frac{\sqrt{196}}{22}\times\frac{\sqrt{484}}{15}\\\frac{15}{14}\times\frac{14}{22}\times\frac{22}{15} = 1$$

Hence, option (b) is the correct answer.