What will come in the place of the question mark ‘(?)’ in the following equation, if ‘÷’ and ‘×’ are interchanged and ‘+’ and ‘−’ are interchanged?
69 − 2 ÷ 7 + 35 × 7 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 78.
Given equation: 69 − 2 ÷ 7 + 35 × 7 = ?
After interchanging the sign:
69 + 2 × 7 - 35 ÷ 7 = ?
? = 69 + 14 - 5
? = 83 - 5 = 78