Question 30227
Let Rick's age be x
Let Nick's age be y
Equations:
*[tex 2(y+4)=x+4] 
*[tex 2y+8=x+4] --(1)


<pre><b>*[tex \frac{2(x+10)}{3}=y+10]
*[tex \frac{2x+20}{3}=y+10]
2x+20=3y+30 --(2)</b>

<i>Multiply equation 1 by 2 then substract equa: 1 by  equa: 2.
</i>4y+16=2x+8
3y+30=2x+20
-----------
y-14=-12
y=2

Rick's age = 2+6. = 8


<font color = green>Hence, RIck is 8 years old and Nick is 2 years old.</font>
Paul.