What will come in the place of the question mark ‘(?)’ in the following equation, if ‘×’ and ‘+’ are interchanged and ‘−’ and ‘÷’ are interchanged?
57 ÷ 9 × 50 − 5 + 2 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 68.
Given equation: 57 ÷ 9 × 50 − 5 + 2 = ?
After interchanging the signs:
57 - 9 + 50 ÷ 5 × 2 = ?
? = 57 - 9 + 20
? = 77 - 9 = 68