Simplify
​$$1.8 + 2 \times \frac{3}{2} \times \frac{1}{2}[ { \frac{2}{5} \div (\frac{3}{5} \times \frac{2}{3}) \times \frac{3}{2} - 1 }]$$​​

Correct option is D

Given:

​$$1.8 + 2 \times \frac{3}{2} \times \frac{1}{2}[ { \frac{2}{5} \div (\frac{3}{5} \times \frac{2}{3}) \times \frac{3}{2} - 1 }]$$ 

Solution:

​$$1.8 + 2 \times \frac{3}{2} \times \frac{1}{2}[ { \frac{2}{5} \div (\frac{3}{5} \times \frac{2}{3}) \times \frac{3}{2} - 1 }]$$ 

=$$1.8 + \frac{3}{2} [ { \frac{2}{5} \div (\frac{2}{5} ) \times \frac{3}{2} - 1 }]$$ 

=$$1.8 + \frac{3}{2} [ { \frac{3}{2} - 1 }]$$ 

=$$1.8 + \frac{3}{2} [ { \frac{1}{2} }]$$ 

=1.8+0.75

=2.55