The sum of two digit number and the number obtained by reversing its digits is a perfect square number. How many such numbers exist?
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Step-by-step explanation:
sum has to be a perfect square, which means (a+b) should be equal to 11, because 11*11 is the only possibility to give a perfect square number. 29,38,47,56,65,74,83,92 are the two digit numbers whose sum with the respective digits reversed give a perfect square number. Hope it helps.
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