What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
8 + 2 – 1 × 1 ÷ 1 = ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 7.
Given equation: 8 + 2 – 1 × 1 ÷ 1 = ?
On interchanging the signs:
8 - 2 + 1 ÷ 1 × 1 = ?
? = 8 - 2 + 1
? = 9 - 2 = 7