Question

The majority of workers has/have come on duty

Answer 1

the majority of workers have come on duty

Answer 2

Answer:

The majority of workers have come.

Explanation:

The given sentence is in present perfect tense, we have just choose whether has or have is to be used there.

To choose has or have between has and have we will have to see subject of the sentence.

The subject used in the sentence is "The majority of workers", which is plural form so have will used here.

So, the answer will be

The majority of workers have come on duty.