Which number will come in the place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
7 ÷ 5 − 30 × 6 + 4 = ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 36.
Given equation: 7 ÷ 5 − 30 × 6 + 4 = ?
On interchanging the signs:
7 × 5 + 30 ÷ 6 - 4 = ?
? = 35 + 5 - 4 = 40 - 4 = 36