Question 696815
Solution :

Let G be the age of George Washington and T be the age of Thomas in the year 1748.

George was born 11 years before Thomas.
Therefore , G = T + 11 always.

In 1770, let the age of George be X and that of Thomas be Y,

Now, X = G+22 , Y = T + 22
But X-Y = 11 always.

X = 3 + 7T = G + 22 = T+11+22 = T+33

6T = 30 OR T = 5 years. and G = 5 + 11  16 years in 1748.

In 1750, T = 7, G = 18

Therefore , Sum of G and T in 1750 is 25 years