Select the number that will come in the place of the question mark(?), if ‘+’ and ‘-‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
61 - 42 × 6 ÷ 9 + 27 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 97.
Given equation: 61 - 42 × 6 ÷ 9 + 27 = ?
On interchanging the signs:
61 + {(42 ÷ 6) × 9} - 27 = ?
? = 61 + 63 - 27
? = 124 - 27
? = 97