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Subj:.....Tell
Mother's Age (S618)
From the book
"Mathematical Puzzles of Sam Loyd"
Edited by Martin Gardner
From: Dover Publications in 1959
How old is the mother?
AGE PUZZLES are always
interesting, and possess a certain
fascination for young
folks who are at all mathematically
inclined. As
a rule, they are extremely simple, but in
this problem the
data is so meager, and the proposition
so different from
what is expected, that the query actually
appears startling.
One of the trio in
the picture was having a birthday anni-
versary. This
aroused Master Tommy's curiosity regarding
their respective
ages, and in response to his queries his
father said:
"Now, Tommy, our three
ages combined amount to just seventy
years. As I
am just six times as old as you are now, it
may be said that
when I am but twice as old as you, our
three combined ages
will be twice what they are at present.
Now let me see if
you can tell me how old is mother?"
Tommy, being bright
at figures, readily solved the problem,
but then he had the
advantage of knowing his own age and
could guess pretty
closely the ages of the others. Our
puzzlists, however,
have merely the data regarding the
comparative ages
of father and son, followed by the
startling question,
"How old is mother?" |