Rachel is 4 years older than Leah. If the sum of their ages is 34, how old is Rachel?
If Rachel and Leah have the same age, then the sum of their ages would be 34 - 4 = <<34-4=30>>30.
So Leah would be 30/2 = <<30/2=15>>15 years old.
Hence, Rachel is 15 + 4 = <<15+4=19>>19 years old.
#### 19