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If ‘A’ stands for ‘+’, ‘B’ stands for ‘−’, ‘C’ stands for ‘×’and ‘D’ stands for ‘÷’, what will be come in place of question mark (?) in the following equation? 35 C 4 D 7 B 10 A 2 = ?
8
10
13
12
12
Follow the BODMAS rule strictly (Division, Multiplication, Addition, Subtraction) after substituting the operators to ensure the equation evaluates correctly.
Follow the BODMAS rule strictly (Division, Multiplication, Addition, Subtraction) after substituting the operators to ensure the equation evaluates correctly.
Substitution of operators
Given that A is +, B is -, C is *, and D is /, substitute these symbols into the expression: 35 * 4 / 7 - 10 + 2
Apply BODMAS division and multiplication
First, perform division (4 / 7) then multiplication (35 * (4/7)): 35 * 4 = 140, then 140 / 7 = 20.
Final addition and subtraction
Now substitute the result into the full expression: 20 - 10 + 2. First add: 20 + 2 = 22, then subtract: 22 - 10 = 12.
A: 8 is incorrect because it fails to follow the correct BODMAS order. B: 10 is incorrect as it results from miscalculating the arithmetic sequence. C: 13 is incorrect as it results from incorrect operation precedence.
D is correct because applying the BODMAS rule to the substituted equation 35 * 4 / 7 - 10 + 2 yields 20 - 10 + 2 = 12.
In mathematical operations questions, always check for division first as it often leads to whole numbers that simplify the rest of the equation.
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