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Question

Evaluate: $\sqrt{93 + \sqrt{32 + \sqrt{274 + \sqrt{225}}}}$

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is
10

Evaluating Nested Square Root Expression

The problem requires simplifying the following nested radical expression:

$ \sqrt{93 + \sqrt{32 + \sqrt{274 + \sqrt{225}}}} $

We simplify this expression by working from the inside out.

Innermost Calculation

First, calculate the square root of the innermost number:

$ \sqrt{225} = 15 $

Second Layer Calculation

Substitute this result back into the expression:

$ \sqrt{274 + 15} $

Now, calculate this new square root:

$ \sqrt{289} = 17 $

Third Layer Calculation

Substitute this result back:

$ \sqrt{32 + 17} $

Calculate the square root:

$ \sqrt{49} = 7 $

Outermost Layer Calculation

Finally, substitute this result into the outermost part:

$ \sqrt{93 + 7} $

Calculate the final square root:

$ \sqrt{100} = 10 $

Final Result

The evaluated value of the expression $ \sqrt{93 + \sqrt{32 + \sqrt{274 + \sqrt{225}}}} $ is 10.

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Important Questions from Square and Square Root

  1. The sum of the squares of two positive integers is 306. If the square of the larger integer is 25 times the smaller integer, then the difference between the two integers is

  2. \(\sqrt{625.0025 }=\)
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