What will come in place of the question mark (?) of the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
45 × 3 + 9 – 18 ÷ 1 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 24.
Given equation: 45 × 3 + 9 – 18 ÷ 1 = ?
On interchanging the signs:
45 ÷ 3 - 9 + 18 × 1 = ?
? = 15 - 9 + 18
? = 33 - 9 = 24