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Question

If \(\sqrt{\left(1+\frac{27}{169}\right)} = \left(1+\frac{x}{13}\right)\) , then the value of x is:

This question was previously asked in
UPSSSC PET 2021 Question Paper (24-Aug-2021) (Shift 2)
The correct answer is

1

Solving the Square Root Equation for the Value of x

This solution explains how to find the value of 'x' in the given algebraic equation involving a square root.

Understanding the Equation

We are given the equation:

Our goal is to isolate 'x' and determine its numerical value.

Step-by-Step Solution

  1. Simplify the expression inside the square root:

    First, find a common denominator for the terms inside the square root on the left side:

    Add the numbers in the numerator:

    So, the left side becomes:

  2. Calculate the square root:

    Find the square root of the numerator and the denominator:

    We know that $14 \times 14 = 196$ and $13 \times 13 = 169$. Therefore:

  3. Equate the simplified left side with the right side:

    Now, we replace the left side of the original equation with its simplified value:

  4. Solve for x:

    Rewrite '1' on the right side with a denominator of 13:

    Combine the terms on the right side:

    Since the denominators are equal, the numerators must also be equal:

    Subtract 13 from both sides to find 'x':

Final Answer Verification

Substituting $x=1$ back into the original equation:

Left side:

Right side:

Since the left side equals the right side, our value $x=1$ is correct.

Conclusion

The value of x that satisfies the equation is 1.

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