perplexus.info :: Just Math : The reversed numbers

The reversed numbers (Posted on 2005-09-16)

Both a and b are four-digit numbers and one is obtained from the other by reversing the digits.

Determine them, knowing that 2 * (a + b) = 5 * (b - 1).

Show your reasoning.

See The Solution Submitted by pcbouhid

Rating: 4.5000 (4 votes)

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Second Solution

| Comment 3 of 8 |

You forgot about a=3002 and b=2003.

Posted by np_rt on 2005-09-16 19:28:01

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