If ‘+’ means ‘−‘, ‘−‘ means ‘×’, ‘÷’ means ‘+’, ‘×’ means ‘÷’, then what is the value of the following expression?
18 – 20 + 162 × 9 ÷ 19 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 361.
18 – 20 + 162 × 9 ÷ 19 = ?
After interchanging signs,
= 18 × 20 - 162 ÷ 9 + 19
= 360 - 18 + 19 = 361