What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
12 ÷ 13 + 128 – 343 × 49 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 35.
Given equation: 12 ÷ 13 + 128 – 343 × 49 = ?
On interchanging the signs:
12 × 13 - 128 + 343 ÷ 49 = ?
? = 156 - 128 + 7
? = 163 - 128 = 35