What will come in place of '?' in the following equation, if ' + ' and ' - ' are interchanged and ' × ' and ' ÷' are interchanged ?
15 + 2 - 13 × 13 ÷ 3 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 16.
Given equation: 15 + 2 - 13 × 13 ÷ 3 = ?
On interchanging the signs:
15 - 2 + {(13 ÷ 13) × 3} = ?
? = 15 - 2 + 3
? = 18 - 2 = 16