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In the correctly worked addition problem shown, where the sum of the two-digit positive integers AB and BA is the three-digit integer AAC, and A, B, and C are different digits, what is the units digit of the integer AAC?

In the correctly worked addition problem shown, where the sum of the two-digit positive integers AB and BA is the three-digit integer AAC, and A, B, and C are different digits, what is the units digit of the integer AAC? Correct Answer

দুই অঙ্ক বিশিষ্ট সংখ্যা (AB) এবং স্থান বিনিময়ের ফলে যে সংখ্যা (BA) পাওয়া যায় তাদের যোগফল তিন অঙ্ক বিশিষ্ট সংখ্যা (AAC) হবে। অর্থাৎ শতক ও দশকের স্থানে অবশ্যই A অঙ্কটি হবে। A = 1 B = 9 AB = 19, BA = 91 AB + BA = 19 + 91 = 110 AAC = 110

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