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Solve: 4.5 * 2.2 + 10.5 / 1.5 - 2.8
11.3
13.2
10.5
12.1
11.3
Perform multiplication and division first from left to right according to the BODMAS rule before addition and subtraction.
Expression: 4.5├Ч2.2+10.5/1.5тИТ2.8
a├Чb+dcтАЛтИТe
Perform multiplication and division first from left to right according to the BODMAS rule before addition and subtraction.
Performing addition or subtraction before division and multiplication, leading to incorrect intermediate values.
Step 1: Multiplication
Multiply 4.5 and 2.2 to get 9.9.
4.5├Ч2.2=9.9
Step 2: Division
Divide 10.5 by 1.5 to get 7.
1.510.5тАЛ=7
Step 3: Addition and Subtraction
Combine the results by adding 9.9 and 7, then subtracting 2.8 to get 11.3.
9.9+7тИТ2.8=11.3
A is correct because evaluating the expression using the BODMAS rule yields 11.3.
Order of operations is fundamental across all quantitative aptitude sections, especially in simplification and number systems.
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