If '+' means '×', '×' means '–', '–' means '÷', and '÷' means '+', then what will come in place of the (?) in the following equation?
250 – 10 + 10 × 5 ÷ 2 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 247.
Given conditions: '+' means '×', '×' means '–', '–' means '÷', and '÷' means '+'
Given equation: 250 – 10 + 10 × 5 ÷ 2 =?
After interchanging the expression becomes:
= 250 ÷ 10 × 10 - 5 + 2
= 25 × 10 - 5 + 2
= 250 - 5 + 2
= 250 - 3
= 247
Hence, 247 is the correct answer.