What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
90 − 6 + 69 ÷ 54 × 27 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. -42.
Given equation: 90 − 6 + 69 ÷ 54 × 27 = ?
On interchanging the signs:
90 + 6 - 69 × 54 ÷ 27 = ?
? = 90 + 6 - 138
? = 96 - 138 = -42