Study permit extension together with family permits extension

[mughal1]

Hi,

I have applied for my study permit extension, along with my family's visas in a single application. The timeline for each application is different. For example study permit has 65 days while work permit extension shows 140 days.
I want to ask which timeline IRCC will follow, the one for principal applicant (study permit extension) or otherwise. I will really appreciate it if someone can share their experience.

Thanks and Regards,