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Find the value of 1.356+4.25×8−3.562×6+7.5×4.
41.625
42.237
43.012
43.984
43.984
Use BODMAS order: calculate all multiplication operations first, then add and subtract from left to right to ensure precision.
Expression: 1.356 + 4.25 × 8 - 3.562 × 6 + 7.5 × 4
BODMAS=Brackets,Orders,Division,Multiplication,Addition,Subtraction
Use BODMAS order: calculate all multiplication operations first, then add and subtract from left to right to ensure precision.
Performing addition/subtraction before multiplication, which violates the fundamental order of operations (BODMAS).
Applying Multiplication first
According to the BODMAS rule, perform all multiplication operations in the expression: 4.25 × 8 = 34, 3.562 × 6 = 21.372, and 7.5 × 4 = 30.
1.356+34−21.372+30
Performing Addition and Subtraction
Group the positive terms and the negative terms: (1.356 + 34 + 30) - 21.372.
65.356−21.372
Final Calculation
Subtract the remaining values to find the final result.
65.356−21.372=43.984
D is correct because the result of the calculation 1.356 + 34 - 21.372 + 30 is 43.984.
This concept is fundamental to all Quantitative Aptitude sections, especially in simplification and approximation questions found in RRB/SSC exams.
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