Number System: Digit Problem 6

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Consider four digit numbers for which the first two digits are equal and the last two digits are also equal. How many such numbers are perfect square?
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Thank you so much Sir. I got this question in CAT book and I completely did not get it. U made it more easy for me. And thanks for revealing the logic. ❤

susana
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Kya Bata rahe hai is trike se comption crack hoga bakwas Kar rahe hai

VijayYadav-xlsf