If '+' means '×', '×' means '–', '–' means '÷', and '÷' means '+', then what will come in place of the (?) in the following equation?
150 – 5 + 3 ÷ 23 × 3 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 110.
Given conditions: '+' means '×', '×' means '–', '–' means '÷', and '÷' means '+'
Given equation: 150 – 5 + 3 ÷ 23 × 3 =?
After interchanging the expression becomes:
= 150 ÷ 5 × 3 + 23 - 3
= 30 × 3 + 23 - 3
= 90 + 23 - 3
= 113 - 3
= 110