Ask About English!!! Q20 "difference in"

Hi,

I met a mother with two children. I want to ask the age gap between. how to ask the question. Is the below english correct?
"What is the difference in their age?"
Many thanks

Cindy


Hi Cindy,

"What is the difference in their age?" is fine.

However I would probably ask:

"What is their age difference?"

Hope this helps

Matt