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Solve: 4.5 * 2 + 8 / 4 - 3 =
7
8
9
10
8
Follow the priority sequence BODMAS strictly: solve Division and Multiplication first from left to right, then Addition and Subtraction.
Expression: 4.5 * 2 + 8 / 4 - 3
BODMAS:Brackets,Orders,Division,Multiplication,Addition,Subtraction
Follow the priority sequence BODMAS strictly: solve Division and Multiplication first from left to right, then Addition and Subtraction.
Students often solve from left to right sequentially (4.5*2=9, +8=17, /4=4.25, -3=1.25) ignoring the operator precedence rules.
Perform Division
According to BODMAS, division takes priority. Calculate 8÷4=2.
8÷4=2
Perform Multiplication
Next, perform multiplication: 4.5×2=9.
4.5×2=9
Addition and Subtraction
Substitute the values back: 9+2−3. Calculate 9+2=11, then subtract 3.
11−3=8
B is correct because following the BODMAS rule leads to 9+2−3=8.
This order of operations is foundational for solving algebraic equations and simplifying complex expressions in Quantitative Aptitude tests.
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