# Math

Paul is 20 years older than joy four years ago; the ratio of their ages was 7:3 find the present age of Paul

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1. Let me fix your punctuation so the problem can be solved:

Paul is 20 years older than Joy. Four years ago the ratio of their ages was 7:3. Find the present age of Paul.

current ages:
Joy ---- x
Paul --- x+20

Ages four years ago:
Joy ---- x-4
Paul ---- x+16

(x+16)/(x-4) = 7/3

continue ....

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2. 4 years ago:
Joy was X years old,
Paul was x + 20 years old,
(x+20)/x = 7/3,
3x + 60 = 7x,
X = 15.
x + 20 = 15 + 20 = 35 years,
Today: Paul's age = 35 + 4 = 39.

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