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If 'A' stands for '├╖', 'B' stands for '├Ч', 'C' stands for '+' and 'D' stands for 'тИТ', what will come in place of question mark '?' in the following equation? 92┬аD┬а12┬аB┬а3┬аC┬а(63┬аA┬а3)┬аD┬а15=?
62
78
54
80
62
Substitute the symbols first, then strictly follow BODMAS rule: Brackets, Division, Multiplication, Addition, Subtraction.
Substitute the symbols first, then strictly follow BODMAS rule: Brackets, Division, Multiplication, Addition, Subtraction.
Step 1: Replace Symbols
Substitute 'A' with '/', 'B' with 'x', 'C' with '+', and 'D' with '-' in the given equation: 92 - 12 x 3 + (63 / 3) - 15.
Step 2: Solve Brackets
Evaluate the bracket term first according to BODMAS: (63 / 3) = 21.
Step 3: Perform Multiplication
Multiply 12 and 3: 12 x 3 = 36. The equation is now: 92 - 36 + 21 - 15.
Step 4: Perform Addition and Subtraction
Combine positive and negative terms: 92 + 21 = 113, and 36 + 15 = 51. Finally, 113 - 51 = 62.
B: 78 is incorrect due to arithmetic or order of operations error. C: 54 is incorrect. D: 80 is incorrect.
A is correct because substituting the symbols and following the BODMAS rule yields exactly 62.
Always solve bracketed expressions first before performing multiplication and division in mixed arithmetic reasoning questions.
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