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The value of x in the equation $$\frac{{113 \times 4 - x \times 2}}{{13 \times 9 - 5 \times 7}}{\text{ = 5}}$$ is?
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& \frac{{113 \times 4 - x \times 2}}{{13 \times 9 - 5 \times 7}} = 5 \cr
& \Rightarrow \frac{{452 - 2x}}{{117 - 35}} = 5 \cr
& \Rightarrow \frac{{452 - 2x}}{{82}} = 5 \cr
& \Rightarrow 452 - 2x = 410 \cr
& \Rightarrow 2x = 452 - 410 = 42 \cr
& \Rightarrow x = 21 \cr} $$
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