SOLUTION: In five years time Paula will be fifteen Janice is three years older than Paula but ten months younger than Jean how old will Jean be in three years time

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Question 1117366: In five years time Paula will be fifteen Janice is three years older than Paula but ten months younger than Jean how old will Jean be in three years time
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You have to put everything in terms of
either months or years.
I will put everything in terms of years
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+10+ months = +10%2F12+ years
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Let +a+ = Paula's age now
Let +b+ = Janice's age now
Let +c+ = Jean's age now
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(1) +a+%2B+5+=+15+
(2) +b+=+a+%2B+3+
(3) +b+=+c+-+10%2F12+
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(1) +a+=+10+
Plug (1) into (2)
(2) +b+=+10+%2B+3+
(2) +b+=+13+
and
(3) +13+=+c+-+10%2F12+
(3) +c+=+13+%2B+10%2F12+
and
+c+%2B+3+=+16+%2B+10%2F12+
In 3 years, Jean will be 16 yrs 10 mo old