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Judged only by its last two digits, which of these numbers can NOT be a perfect square?

Class 8Properties of Square NumbersSquares and Roots
  • A7935
  • B4225
  • C9216
  • D1024

Step-by-Step Solution

A square ending in 5 must end in 25. 7935 ends in 35, so it cannot be a perfect square
Answer: A) 7935

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