Correct option is A
Given:
'×' means '÷', '–' means '×', '÷' means '+' and '+' means '–',
(4 – 12 ÷ 16) × 8 + 5
Follow BODMAS rule,
Operation preference wiseBracketsOrders,ofDivisionMultiplicationAdditionSubtractionSymbol[],,()(power),√(root),of÷×+−
Logic: change mathematical sign, then
(4 × 12 + 16) ÷ 8 – 5
= (48+16)÷8–5
= (64)÷8–5
= 8–5
= 3
So that correct option is option (a).