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0 / 60 seg.
If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten. How is this possible?
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Clue
20 TIMES. THEY ARE 9, 19, 29, 39, 49, 59, 69, 79, 89, 99 (2 TIMES) FOLLOWED BY 90, 91, 92, 93, 94, 95, 96, 97, 98
THEY ARE 10.5 AND 0.5 YEARS OLD. A COMMON WRONG ANSWER IS 10 AND 1. THIS IS WRONG BECAUSE THE DIFFERENCE IN AGE WOULD BE 9, NOT 10
IT IS POSSIBLE IF YOU ARE USING ROMAN NUMERALS. 9 = IX 10 = X 11 = XI
THE DIFFERENCE IN AGE IS STILL 23 YEARS, SO I MUST BE 23 IF MY FATHER IS TWICE AS OLD
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