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0 / 60 seg.
How many times can you subtract 5 eggs from a carton holding 25 eggs?
O
N
L
Y
_
N
C
_
.
A
F
T
_
R
T
H
_
T
Y
_
_
_
R
_
S
_
B
T
R
_
C
T
_
N
G
F
R
_
M
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C
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R
T
_
N
T
H
_
T
N
_
L
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N
G
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R
H
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S
2
5
_
G
G
S
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N
_
T
Clue
ONLY ONCE. AFTER THAT YOU ARE SUBTRACTING FROM A CARTON THAT NO LONGER HAS 25 EGGS IN IT
YES. HE TOOK AS MUCH TIME FOR THE SECOND HALF OF HIS TRIP AS THE WHOLE TRIP WOULD HAVE TAKEN ON FOOT. SO NO MATTER HOW FAST THE TRAIN WAS, HE LOST EXACTLY AS MUCH TIME AS HE SPENT ON THE TRAIN. HE WOULD HAVE SAVED 1⁄30 OF THE TIME BY WALKING ALL THE WAY
THE DIFFERENCE IN AGE IS STILL 23 YEARS, SO I MUST BE 23 IF MY FATHER IS TWICE AS OLD
SHE WAS BORN ON FEBRUARY 29, 1896. THE YEAR 1900 WAS NOT A LEAP YEAR (ONLY CENTURIES DIVISIBLE BY 400 ARE LEAP YEARS), SO THE NEXT FEBRUARY 29 FELL IN 1904 WHEN SHE WAS EIGHT. SHE WAS TWELVE ON HER SECOND BIRTHDAY
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