If the positions of the first and the second digits of each of the num – InterviewSolution

1.	If the positions of the first and the second digits of each of the numbers are interchanged, in how many numbers thus formed will the first digit be a perfect square? (‘1’ is also a perfect square)
Answer» If the positions of the first and the second digits of each of the numbers are interchanged, in how many numbers thus formed will the first digit be a perfect square? (‘1’ is also a perfect square)

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