Algebra Puzzle

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Offline Masuma Parvin

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Algebra Puzzle
« on: November 13, 2012, 04:12:20 PM »
Solve the following:

ABCD × D = DCBA

The Solution . . .
1089 × 9=9801



Offline msu_math

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Re: Algebra Puzzle
« Reply #1 on: November 13, 2012, 04:47:50 PM »
Very interesting !! But I think this solution is not so obvious because the relation "ABCD x D = DCBA" leads an equation of the form "(1000A + 100B + 10C + D) x D = 1000D + 100C + 10B + A"
Mohammad Salah Uddin

Lecturer in Mathematics
Department of Natural Sciences
FSIT, DIU