Posted by **Heleny** on Wednesday, March 6, 2013 at 9:00am.

A man is currently 4 times as old as his son. In 4 yrs from now hell be 3 times as old as his son will be then. How old is his son now??

- Math -
**Dr. Jane**, Wednesday, March 6, 2013 at 9:08am
Can you get this started based on the help you got a little while ago?

Let m = man

Let s = son

Currently: give me the equation

four years from now: give me the equation.

- Math -
**Heleny**, Wednesday, March 6, 2013 at 9:10am
Okay : Currently man is : 4s

Son : s

4 yrs froom now:

Man

3(s-3)

Son: s-3

- Math -
**Dr. Jane**, Wednesday, March 6, 2013 at 9:22am
You are correct with the m = 4s

for years from now the man will be m+4

and the son will be s +4

Now, what is their age relationship.

The man will be 3 times older than his son.

m + 4 = 3(s+4)

use that equation and m = 4s

to find their ages.

You have to read carefully and look for key words. For example, 3 times means to multiply by 3.

Four years from now means you have to add 4 years to their age.

If it said 4 years ago then you would subtract.

- Math -
**Heleny**, Wednesday, March 6, 2013 at 9:26am
Thanks alot :) that helpe me alot

- Math -
**alj**, Wednesday, March 6, 2013 at 11:10am
father=32

son=8

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