31 Jul 2013

Irish MO 1988 P1 Q9: Lower Secondary Mathematics Competition Question

The year 1978 was “peculiar" in that the sum of the numbers formed with the first two digits and the last two digits is equal to the number formed with the middle two digits, i.e., 19 + 78 = 97.

What was the last previous "peculiar" year, and when will the next one occur?

[ Irish MO 1988 Paper 1 Question 9]

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