math
posted by Anonymous on .
The sum of the ages of the three Romano brothers is 63. If their ages can be represented as consecutive integers, what is he age of the middel brother?

let the middle brother's age be x
then the oldest is x+1
and the youngest is x1
x1 + x + x+1 = 63
solve for x to get middle brother's age. 
63 is three times the average age (which is that of the middle brother), so that age much be 21. The ages of all three are therefore 20, 21 and 22.