Perfect square always ends with _____________ .

0, 2, 3 or 5

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1, 5, 7 or 6

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0, 1, 4, 5, 6 or 9

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2,3,7 or 8

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Solution

The correct option is C 0, 1, 4, 5, 6 or 9
Perfect squares always ends with
0, 1, 4, 5, 6 or 9 but not with 2,3,7 or 8.

Ex: Perfect squares like 16, 25, 49, 64, 81, 100 have 0, 1, 4, 5, 6 or 9 in their units place.

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Similar questions

Statement 1: Square numbers can never end with 2, 3, 7 or 8.

Statement 2: If a number ends with 0, 1, 4, 5, 6 or 9, it must be a square number.

Which of these statement(s) is/are right?

A number ending with 1 or 9 will always have its square ending with 1.

A = {1, 2, 3}, B = {2, 4, 6, 8}, C = {3, 4, 5, 6}

n (A - B) = 2

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