What will come in the place of the question mark ‘(?)’ in the following equation, if ‘×’ and ‘+’ are interchanged and ‘−’ and ‘÷’ are interchanged?
51 ÷ 30 × 36 − 6 + 6 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 57.
Given equation: 51 ÷ 30 × 36 − 6 + 6 = ?
After interchanging the signs:
51 - 30 + 36 ÷ 6 × 6 = ?
? = 51 - 30 + 36
? = 87 - 30 = 57