What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘÷‘ are interchanged and ‘×’ and ‘−’ are interchanged?
48 × 16 − 20 ÷ 21 + 7 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. −269.
Given equation: 48 × 16 − 20 ÷ 21 + 7 = ?
On interchanging the signs:
48 - 16 × 20 + 21 ÷ 7 = ?
? = 48 - 320 + 3
? = 51 - 320 = -269