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If A means +, B means –, C means × and D means ÷, then what will come in place of the question mark (?) in the following equation? 7 C 5 B 32 D 8 A 6 = ?
35
31
33
37
37
Apply the BODMAS rule (Division, Multiplication, Addition, Subtraction) strictly to the substituted expression to find the final value in seconds.
Apply the BODMAS rule (Division, Multiplication, Addition, Subtraction) strictly to the substituted expression to find the final value in seconds.
Substitute the symbols
Replace the letters with their defined mathematical operations: 7 C 5 B 32 D 8 A 6 becomes 7 * 5 - 32 / 8 + 6.
Apply BODMAS rule
Perform Division first: 32 / 8 = 4. Equation becomes: 7 * 5 - 4 + 6. Perform Multiplication next: 7 * 5 = 35. Equation becomes: 35 - 4 + 6.
Perform Addition and Subtraction
Perform Addition: 35 + 6 = 41. Perform Subtraction: 41 - 4 = 37.
A: 35 is the result of 7*5, neglecting the remaining operations. B: 31 is the result of 35-4, neglecting the final addition. C: 33 is an incorrect arithmetic result resulting from order errors.
D is correct because following the BODMAS order of operations on the substituted expression 7*5-32/8+6 yields exactly 37.
Always divide first and perform multiplication before addition or subtraction; failing to follow BODMAS is the most common reason for errors in these questions.
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