SOLUTION: Fred is five times as old as grace. In eight years time, Fred will be three times as old as grace. Find their ages

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Question 1161315: Fred is five times as old as grace. In eight years time, Fred will be three times as old as grace. Find their ages
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
y, Fred
x, Grace
system%28y=5x%2Cy%2B8=3%28x%2B8%29%29

5x%2B8=3x%2B24
2x=24-8
x=12-4
highlight%28x=8%29
-
highlight%28y=40%29



EARLY MISREAD PUNCTUATIONS IN THE DESCRIPTION-----------------------------
BELOW HERE IS WRONG-------------------------------------------------------

system%28y=x%2B5x%2Cy%2B8=3%28x%2B8%29%29

y%2B8=3x%2B18
6x%2B8=3x%2B18
cross%283x=10%29
cross%28x=10%2F3=3%261%2F3%29
Grace is 3 years 4 months.

y=6%283%261%2F3%29=6%2810%2F3%29=cross%2820%29
Fred is 20 years of age.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Fred is five times as old as grace. In eight years time, Fred will be three times as old as grace. Find their ages
He's WRONG, AGAIN!! Their ages are WRONG, WRONG, WRONG, and still WRONG!!

In other words, Grace is NOT 3%261%2F3 years-old, and Fred is NOT 20. That makes ABSOLUTELY no sense!

A question you need to ask yourself after looking at his solution is: Does 5 times 3%261%2F3 equal 20?

Try working it out yourself. You might be able to do a better job!