This is not a trick question, just a good puzzle...
Three grand oak trees stood in a row along a stream. They were of different ages.
The sum of their ages was exactly one thousand years.
When the youngest tree reaches the current age of the middle tree, the middle tree would be the current age of the oldest tree and four times the current age of the youngest tree.
From this information, determine the age of the trees...
How old are these oak trees?
Re: How old are these oak trees?
from the description, ages of the trees assumed to be a, b and c respectively in ascending order
It is given that:
a+b+c = 1000
ba = cb
So
c=b+(ba)
a+b+b+(ba) = 1000
Hence 3b=1000
and so
b=333.33
It is also given that c=4a
hence a+b+4a=1000
a=(1000b)/5 =666.67/5=133.33
c then has to be 533.33.
thus the trees are 133, 333 and 533years old (Provided I understood the question, correct me if I am wrong)
It is given that:
a+b+c = 1000
ba = cb
So
c=b+(ba)
a+b+b+(ba) = 1000
Hence 3b=1000
and so
b=333.33
It is also given that c=4a
hence a+b+4a=1000
a=(1000b)/5 =666.67/5=133.33
c then has to be 533.33.
thus the trees are 133, 333 and 533years old (Provided I understood the question, correct me if I am wrong)
Siby

 Posts: 119
 Joined: Sun Oct 22, 2006 1:24 pm
Re: How old are these oak trees?
I understood  a+bc x d  c + b  a / c x abcd = answer. second option Take the next oak tree hit it in the middle and count the rings to get the answer. that s what mbbs did to me.