Question 696864
Age of Sarah =2
Age of Danayl = half of 2 =1

When sarah turns 50, she will have lived another (in addition to her current age) 50-2= 48 years.

Then Danayl also will have lived another 48 years.

Age of Danayl will be 1+ 48= 49 years.


OR

Current age difference between Sarah and Danayl = 1 year.

This will remain constant throughout their life.( as both age equally)

So, when Sarah turns 50, Danayl will be 50 -1 = 49 years.