Am trying to help my autistic boy and unfortunately am not very good with math. He has a Age Word Problem as below:
Bill and Ben are brothers the sum of their ages is equal to 4 times Bob's age who is half as old as Bridget. The average age of the 4 children is 8. Write this as an equation, then solve it.
I tried to work out the equations and came out with something as below:
A + B = 4C
D = 2C
A + B + C + D = 32
When I tried to work out the values, am not coming up with a whole number as the answer. Also am getting an invalid age value for A and B as well. What am I doing wrong?
Any advice will be much appreciated. Thanks in advance.