What is the square root of 15625?

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A 115
B 135
C 125
D 162

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Answer: C. 125

15625 ends in 25, so its square root ends in 5. Since 120^2 = 14400 and 130^2 = 16900, try 125: 125 x 125 = 15625. So the square root is 125.

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What is the square root of 15625?

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