Answer:
92
Explanation:
If Mr. Kellman's son is 26 years old, then Mr. Kellman is twice as old as his son, which means he is
2 · 26 = 52 years old.
In 7 years, Mr. Kellman's son will be 26 + 7 = 33 years old.
In 7 years, Mr. Kellman will be 52 + 7 = 59 years old.
Therefore, their total age in 7 years will be 33 + 59 = 92 years.