How many of white Canadians want to come to India?

[Dharminder Singh]

1. How many of white Canadians want to come to India?
2. How many of Indo-Canadians want to return to India?
3. How many of Indians want to go to Canada?

In the above three questions, do we need to write "of" or it's redundant?

 

[tedmc]

No, it would be out of place.

 

[emsr2d2]

1. How many of white Canadians want to come to India?
2. How many of Indo-Canadians want to return to India?
3. How many of Indians want to go to Canada?

In the above three questions, do we need to write "of" or it's is it redundant?

It's not just redundant - including "of" makes all three sentences grammatically incorrect.