If '*' denotes '+', '/' denotes '-', '&' denotes '×', and '@' denotes '÷', then what is the value of 18 & 12 @ 4 * 5 / 6?
Show answer & explanation
Correct answer: D
Explanation
Given symbol conversions:
• * means +
• / means -
• & means ×
• @ means ÷
Given expression: 18 & 12 @ 4 * 5 / 6
Replacing the symbols with their respective mathematical operators:
= 18 × 12 ÷ 4 + 5 - 6
Using the BODMAS rule:
= 18 × (12 ÷ 4) + 5 - 6
= 18 × 3 + 5 - 6
= 54 + 5 - 6
= 59 - 6
= 53
Thus, the correct answer is (D) 53.