if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged, 59 – 72 × 8 + (64 ÷ 4) × 8 – 16 ÷ 3 = ?

Given expression:

59 – 72 × 8 + (64 ÷ 4) × 8 – 16 ÷ 3

Operation changes:

• ‘+’ ↔ ‘–’

• ‘×’ ↔ ‘÷’

So the new expression becomes:

59 + 72 ÷ 8 − (64 × 4) ÷ 8 + 16 × 3

Now solve using BODMAS.

First brackets:
$64 \times 4 = 256$

Expression becomes:
59 + 72 ÷ 8 − 256 ÷ 8 + 16 × 3

Now division and multiplication:

$72 \div 8 = 9$
$256 \div 8 = 32$
$16 \times 3 = 48$

Now substitute:

59 + 9 − 32 + 48

Solve step-by-step:

59 + 9 = 68
68 − 32 = 36
36 + 48 = 84
Final Answer: 84