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The question appears to be missing from the provided images. Based on the available options, this likely relates to a mathematical or logical reasoning problem.
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29
Use the BODMAS rule (Brackets, Orders, Division, Multiplication, Addition, Subtraction) to resolve inner parentheses first, followed by braces.
Mathematical expression: 20 + {10−5 + (7 - 3)}
20+{10−5+(7−3)}
Use the BODMAS rule (Brackets, Orders, Division, Multiplication, Addition, Subtraction) to resolve inner parentheses first, followed by braces.
Students often make mistakes by ignoring the priority of the inner parentheses (7-3) before applying the operations inside the curly braces.
Solve the innermost parentheses
Start by calculating the expression inside the parentheses: (7−3)=4.
(7−3)=4
Solve the expression inside the curly braces
Substitute the result back into the expression and solve inside the curly braces: 10−5+4=5+4=9.
10−5+4=9
Perform the final addition
Add the result to the outside number: 20+9=29.
20+9=29
D is correct because the step-by-step simplification of 20 + {10−5 + (7 - 3)} yields 29.
This order of operations (BODMAS/PEMDAS) is fundamental for simplifying complex expressions in algebra and data interpretation sections.
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