Multiple choice general knowledge

Mathematics:Find the Result (111,111,111 x 111,111,111)

  1. 12,345,678,987, 654,321

  2. 12,345,678,987, 654,341

  3. 12,345,678,987, 634,321

  4. 12,345,678,987, 654,361
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A Correct answer
Explanation

111,111,111 × 111,111,111 = 12,345,678,987,654,321. This follows the pattern that multiplying a repunit of n nines by itself produces a palindromic sequence counting up to n and back down. Here with 8 ones, the result counts 1-2-3-4-5-6-7-8-9-8-7-6-5-4-3-2-1.

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