Solving a system of linear equation in two variables
Given that AC...
Question
Given that ACT ÷ AT = 11, find out which of the following does not stand for CAT to fulfil the above equation.
A
2 4 6
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B
6 1 5
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C
6 2 4
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D
8 3 5
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Solution
The correct option is B 2 4 6 Given, ACT÷AT = 11 ⇒ACT=11×AT ⇒100A+10C+T=11(10A+T) ⇒100A+10C+T=110A+11T ⇒−10A+10C−10T=0 ⇒C=A+T out of the 4 options, only option 1 (246) does not satisfy the above condition hence, option A.