In an imaginary mathematical system, the symbol '–' stands for addition, the symbol '+' stands for division, the symbol '×' stands for subtraction, and the symbol '÷' stands for multiplication. All other rules of mathematics are the same as in the existing system. What is the value of the following expression?
240 × 72 + 8 ÷ 24 – 6
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 30.
Given equation: 240 × 72 + 8 ÷ 24 – 6
Given conditions:
- ⇒ +
+ ⇒ ÷
× ⇒ -
÷ ⇒ ×
After replacing the expression becomes:
= 240 - 72 ÷ 8 × 24 + 6
= 240 - 9 × 24 + 6
= 240 - 216 + 6
= 30
Hence, option 1 is the correct answer.