SOLUTION: Difference between the ages of two brothers is 8yrs. 2 yrs ago the average of their age is 20. What is the current age of the elder brother? Please guide me in sloving the sum..

Question 375389: Difference between the ages of two brothers is 8yrs. 2 yrs ago the average of their age is 20. What is the current age of the elder brother?
Please guide me in sloving the sum....im very weak im maths. . but if i get the concepts right...i can do well...please guide me and give me tips as to slove problem ser.
Thanks in advance.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let one brother be A years old, the other B years old.
1.
Two years ago, the first brother was years old the other brother was years old.
The average of their ages,2 years ago, is,

2.
Add eq. 1 to eq. 2 to eliminate A and solve for B.

Then from eq. 1,

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