Which two signs and numbers need to be interchanged to make the following equation correct?
17 + (22 ÷ 11) – (88 × 2) – 23 = 30

Concept: interchange numbers and mathematical operators and solve as per BODMAS rule.

17 + (22 ÷ 11) – (88 × 2) – 23 = 30

After interchanging,

17 + (22 × 2) – (88 ÷ 11) – 23 = 30

Or, 17+44-8-23=30

Or, 17+13=30

Or, 30=30

So, its correct option.

17 + (22 ÷ 11) – (88 × 2) – 23 = 30

After interchanging,

17 + (88 × 11) – (22 ÷ 2) – 23 = 30

or, 17+8-11-23=30

or, -9≠30

So, its not correct option.

17 + (22 ÷ 11) – (88 × 2) – 23 = 30

After interchanging,

17 × (22 ÷ 2) – (88 + 11) – 23 = 30

or, 17×11 – 99 – 23 = 30

or, 187-122=30

or, 65≠30

So, its not correct option.

17 + (22 ÷ 11) – (88 × 2) – 23 = 30

After interchanging,

17 × (88 ÷ 11) – (22 + 2) – 23 = 30

or, 17×8 –24 – 23 = 30

or, 136-147=30

or, -11≠30

So, its not correct option.

Thus, option A is correct.