In a given mathematical code, let the addition symbol + represent multiplication, the multiplication symbol × represent subtraction, the subtraction symbol - represent division, and the division symbol ÷ represent addition. Evaluate the following mathematical expression under these rules: $6+4\times 24-8÷4=?$

The correct option is 25.

To evaluate the given mathematical expression, we first need to substitute the mathematical symbols according to the rules defined in the code:

• The addition symbol + represents multiplication (×).

• The multiplication symbol × represents subtraction (-).

• The subtraction symbol - represents division (÷).

• The division symbol ÷ represents addition (+).

The original expression is:

$6+4\times 24-8÷4$

Replacing the original operators with their new representations as per the given rules, we get the modified expression:

$6\times 4-24÷8+4$

Now, we solve the modified expression step-by-step using the BODMAS rule (Brackets, Orders, Division/Multiplication, Addition/Subtraction):

Step 1: Perform the Division

Divide 24 by 8:

$24÷8=3$

So, the expression becomes:

$6\times 4-3+4$

Step 2: Perform the Multiplication

Multiply 6 by 4:

$6\times 4=24$

So, the expression becomes:

$24-3+4$

Step 3: Perform Addition and Subtraction

Add 24 and 4, then subtract 3:

$24+4=28$

$28-3=25$

Therefore, the value of the expression under the coded rules is 25.