SOLUTION: Old man winkle spent 1/4 of his life as a boy, 1/8 as a youth, and 1/2 as an active man. If Mr. winkle spent 10 years as an old man, how many years did he spend as an active man?

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Question 193872: Old man winkle spent 1/4 of his life as a boy, 1/8 as a youth, and 1/2 as an active man. If Mr. winkle spent 10 years as an old man, how many years did he spend as an active man?
Found 2 solutions by Mathtut, edjones:
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
(1/4)x+(1//8)x+(1/2)x+10=x
:
2x+x+4x+80=8x
:
x=80
:
(1/2)x=1/2(80)=40 years as an active man

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
1/4 + 1/8 + 1/2
=2/8 + 1/8 + 4/8
=7/8
10 yrs = 1/8 of his life as an old man.
So, 40 yrs as an active man.
.
Ed