The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
Think hard. Detailed solution:
38
Let X be the age of the older friend.

The younger friend is X - 2 years old.

So, the age of both is X + (X - 2) = 74.

X + X = 74 + 2.

2 * X = 76.

Then, the older friend is X = 38 years old.

.

The answer is 38