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If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, then what will be come in place of the question mark (?) in the following equation? 13 D 32 C 36 B 49 A 49 = ?
15
18
19
17
17
Apply BODMAS: Division first (49/49 = 1), then Multiplication (36 × 1 = 36), then Addition and Subtraction.
Apply BODMAS: Division first (49/49 = 1), then Multiplication (36 × 1 = 36), then Addition and Subtraction.
Variable Substitution
Replace letters with arithmetic operators: D is '-', C is '+', B is '×', A is '÷'. The equation becomes 13 - 32 + 36 × 49 ÷ 49.
BODMAS Application
First, perform division (49 ÷ 49 = 1). The equation becomes 13 - 32 + 36 × 1.
Final Calculation
Perform multiplication (36 × 1 = 36), then addition and subtraction: 13 - 32 + 36 = -19 + 36 = 17.
A: 15 is incorrect as the calculation results in 17; B: 18 is incorrect due to arithmetic error; C: 19 is incorrect as the sequence leads strictly to 17.
D is correct because following the BODMAS rule (13 - 32 + 36 × 1) yields exactly 17.
Always handle the Division (A) and Multiplication (B) parts first in these coding-math questions to avoid common order-of-operation traps.
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