Find the least number which must be added to 18, 265 to obtain a perfect square.

232

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231

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237

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233

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Solution

The correct option is B
231

Use long division to find the closest square root.

Clearly, 18265 is greater than $135^{2}$

We need to add a number to 18265, such that the resultant is the square of 136.

i.e., $136^{2} = 18496$

So, required number = 18496 - 18265 = 231

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Find the least number which must be added to 18, 265 to obtain a perfect square.

The correct option is B 231 Use long division to find the closest square root. Clearly, 18265 is greater than 1352 We need to add a number to 18265, such that the resultant is the square of 136. i.e., 1362=18496 So, required number = 18496 - 18265 = 231

The correct option is B
231

Use long division to find the closest square root.

Clearly, 18265 is greater than $135^{2}$

We need to add a number to 18265, such that the resultant is the square of 136.

i.e., $136^{2} = 18496$

So, required number = 18496 - 18265 = 231