What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–’ are interchanged and also ‘×’ and ‘÷’ are interchanged?
11 ÷ 12 – 78 × 6 + 54 = ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 91.
Given equation: 11 ÷ 12 – 78 × 6 + 54 = ?
if ‘+’ and ‘–’ are interchanged and also ‘×’ and ‘÷’ are interchanged:
11 × 12 + 78 ÷ 6 - 54 = ?
? = 11 × 12 + 13 - 54
? = 132 + 13 - 54
? = 145 - 54 = 91