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If 'A' means 'addition', 'B' means 'subtraction', 'C' means 'multiplication' and 'D' means 'division', then what is the value of 24 D 6 C 3 A 12 B 5?
15
19
25
29
19
Substitute the symbols directly and apply BODMAS strictly from left to right for multiplication and division.
Substitute the symbols directly and apply BODMAS strictly from left to right for multiplication and division.
Step 1: Substitute Symbols
Replace D with division (/), C with multiplication (*), A with addition (+), and B with subtraction (-) to get the numerical expression: 24 / 6 * 3 + 12 - 5.
Step 2: Multiplication and Division
Evaluate multiplication and division from left to right: 24 / 6 = 4, then 4 * 3 = 12. The expression reduces to 12 + 12 - 5.
Step 3: Addition and Subtraction
Evaluate addition and subtraction from left to right: 12 + 12 = 24, then 24 - 5 = 19.
A: 15 is incorrect because it results from a calculation error. C: 25 is incorrect because it ignores the correct order of operations. D: 29 is incorrect because of improper precedence application.
B is correct because substituting the given operations and applying BODMAS results in exactly 19.
For operations of equal priority like multiplication and division, always evaluate strictly from left to right to avoid sign or sequence errors.
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