The value of 0.6 + $$(\sqrt{0.81} - (\sqrt{0.0144} + 0.4 \div 0.5))$$ is :​

Correct option is D

Given:

​$$0.6 +(\sqrt{0.81} - (\sqrt{0.0144} + 0.4 \div 0.5))$$​​

Concept 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:

​$$0.6 +(\sqrt{0.81} - (\sqrt{0.0144} + 0.4 \div 0.5))$$​ 

​$$=0.6 +(0.9 - (0.12 + 0.8))$$​   

​$$=0.6+ (0.9 - 0.92)$$​   

​$$= 0.6+ (-0.02)$$​​

​$$= 0.58$$​​