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Bunuel
The square root of 61,504 is

(A) 245

(B) 246

(C) 247

(D) 248

(E) 249
Use the units digit rule ,except (D) none of the numbers will yeild units digit as 4, hence correct answer must be (D)
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We can calculate using the power of unit digits. In the answer choices only D will end uwith unit digit 4.

Ans : D
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Bunuel
The square root of 61,504 is

(A) 245

(B) 246

(C) 247

(D) 248

(E) 249

We are looking for a number that, when squared, will have a units digit of 4. Of our answer choices, only 248 will have a units digit of 4 when it is squared.

Answer: D
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Bunuel
The square root of 61,504 is

(A) 245

(B) 246

(C) 247

(D) 248

(E) 249


Only square of 248 will result in unit's digit of 4
Answer D
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Bunuel
The square root of 61,504 is

(A) 245

(B) 246

(C) 247

(D) 248

(E) 249

Unit digit of the given number 61504 is 4, therefore we need to find an answer choice which gives us a unit digit of 4 when squared.

248 * 248 = 61504

Therefore (D).
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The square root of 61,504 is

The unit digit 4 is only valid for either 2 or 8.
Since, we don't have any value in the options ending with 2, we don't need to check any other option.
The answer is option (D) 248
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