Solution:
Given that,
Among the 4 requests of icecream, we get 2 stawberry request and 2 mint request.
To find the chance of the next 10 request will be stawberry.
In the next 4 request it may have 2 stawberry flavour
In the other next 4 request it may have 2 stawberry flavour
In the next 2 request ith may have 1 stawberry flavour.
we get, Among the 10 request we get 5 stawberry flavour.
The chance of getting stawberry flavour is 5 request among the 10 request.