If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’, ‘÷’ means ‘+’, then what will come in place of the question mark (?) in the following equation?
39 × 3 – 11 ÷ 57 + 29 = ?
Show answer & explanation
Correct answer: D
Explanation
correct answer is option 4 i.e. 171.
Given conditions: ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’, ‘÷’ means ‘+’
Given equation: 39 × 3 – 11 ÷ 57 + 29 =?
After interchanging the expression becomes:
= 39 ÷ 3 × 11 + 57 - 29
= 13 × 11 + 57 - 29
= 143 + 57 - 29
= 200 - 29 = 171