Sir i dont get question

sir plz sort out this question

Hey Devrath, here you have to tell maximum activities you can perform such that time for non of the activity overlaps. In given test case:
1
3
10 20
12 15
20 30
you can perform maximum two activities
if you choose for 10 to 20,then you cannot perform activity from 12 to 15 as you are already engaged.

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.