If ‘+’ means ‘subtraction’, ‘−’ means ‘multiplication’, ‘÷’ means ‘addition’ and ‘×’ means ‘division’, then what is the value of the following expression?
22 − 4 + 72 × 18 ÷ 31
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 115.
Given expression: 22 − 4 + 72 × 18 ÷ 31
On interchanging the signs:
22 × 4 - 72 ÷ 18 + 31
88 - 4 + 31
119 - 4 = 115