If '+' means '÷', '–' means '+', '×' means '–' and '÷' means '×', then what will come in place of (?) in the given equation?
5 ÷ 2 – 20 + 5 × 2 =?
Show answer & explanation
Correct answer: A
Explanation
orrect answer is option 1 i.e. 12.
Given conditions: '+' means '÷', '–' means '+', '×' means '–' and '÷' means '×'
Given equation: 5 ÷ 2 – 20 + 5 × 2 =?
After interchanging the expression becomes:
= 5 × 2 + 20 ÷ 5 - 2
= 5 × 2 + 4 - 2
= 10 + 4 - 2
= 14 - 2
= 12