SOLUTION: the sum of two friends age of 4 year back is 48 .& the product of their age is 20 .what is their current age ?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: the sum of two friends age of 4 year back is 48 .& the product of their age is 20 .what is their current age ?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1025443: the sum of two friends age of 4 year back is 48 .& the product of their age is 20 .what is their current age ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28A-4%29%2B%28B-4%29=48
A%2BB-8=48
A%2BB=56
and
A%2AB=20
A=20%2FB
Substituting,
20%2FB%2BB=56
20%2BB%5E2=56B
B%5E2-56B%2B20=0
%28B%5E2-56B%2B784%29%2B20=784
%28B%2B28%29%5E2=764
This does not lead to an integer solution for B since 764 is not a perfect square.
Check the problem set up and repost.