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If 'A' stands for '÷', 'B' stands for '×', 'C' stands for '+' and 'D' stands for '-', what will come in place of the question mark '?' in the following equation? 2 B 18 D 20 A 4 C 15=?
48
47
46
45
46
Apply BODMAS rule strictly: first substitute the symbols, then calculate in the order of Division, Multiplication, Addition, and Subtraction.
Apply BODMAS rule strictly: first substitute the symbols, then calculate in the order of Division, Multiplication, Addition, and Subtraction.
Substitute the symbols
Replace the letters in the expression 2 B 18 D 20 A 4 C 15 with their given mathematical operations: A = division (/), B = multiplication (*), C = addition (+), and D = subtraction (-). The expression becomes: 2 * 18 - 20 / 4 + 15.
Apply BODMAS rule
Following the BODMAS sequence: 1) Division: 20 / 4 = 5. The equation becomes 2 * 18 - 5 + 15. 2) Multiplication: 2 * 18 = 36. The equation becomes 36 - 5 + 15. 3) Addition: 36 + 15 = 51. Finally, 4) Subtraction: 51 - 5 = 46.
A: 48 is incorrect because the arithmetic result is 46, not 48. B: 47 is incorrect because it deviates from the correct BODMAS calculation result. D: 45 is incorrect because it misses the final sum subtraction result.
C is correct because applying the BODMAS order of operations (2 * 18 - 5 + 15) results in 46.
Always handle division first in mixed operations, as incorrect ordering is the most common trap in arithmetic reasoning problems.
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