If ‘+’ means ‘÷’, ‘–’ means ‘+’, ‘×’ means ‘–’ and ‘÷’means ‘×’, then what will be the value of the following expression?
[{(23 × 15) – (1 ÷ 4)} + (2 – 2)] ÷ 2

Given: [{(23 × 15) – (1 ÷ 4)} + (2 – 2)] ÷ 2 

Have to made changes:

Now solve equation: 

=[{(23–15)+(1×4)}÷(2+2)]×2

=[{(8 + 4)}÷4]×2

=[12÷4]×2

=3×2​

=6

Thus, correct option is (a).