Does page fault service time include memory access time as well?

Question

In some questions solution includes,

EMAT = (1-p)(memory access time) + p* page fault service time

while in others,

EMAT = (1-p) (memory access time) + p*( memory access time + page fault service time)

I am very confused if the page fault service time includes memory access time when the page is loaded from the disk.

 

Comments

Don't remember the formula. Understand the concept then you can easily understand where to use which formula.

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Conceptually, I know that once a page fault occurs modified page to be replaced must be written to the secondary memory after which page must be read from secondary memory into main memory, page table must be updated and then access main memory to read the page.

Only thing I am confused about is that if the question says that page fault service time is say X then does that include the memory access time after the page is read into main memory or do we need to consider it separately?