What will come in place of the question mark (?) of the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
22 × 11 + 13 − 12 ÷ 2 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 13.
Given equation: 22 × 11 + 13 − 12 ÷ 2 = ?
If ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged, then
= 22 ÷ 11 - 13 + 12 × 2
= 2 - 13 + 12 × 2
= 2 - 13 + 24
= 26 - 13
= 13