by GMAT 5/18 Thu May 03, 2007 10:56 pm
Yamini,
The first sentence (1) does not make sense - I think it is missing a "to" - please suggest TO us if there are other ways to find. I am not sure I see a major difference apart from that, so I would choose the first sentence for brevity.
For the second (2), "is" is correct. For "either or", "neither nor" situations, it is the preceeding subject that denotes the plurality. For example, if the sentence read "Neither Raj nor his friends are going to the beach", "are" is correct because "his friends" is plural. If instead the sentence read "Neither his friends nor Raj is going to the beach", "is" is correct as Raj is single.
In the case of Mike and David (3), it would be "are" - this is because Mike AND David are plural. However, if the sentence read "Mike, in addition to David", "is" would be correct.
For number (4), I would say "is" is correct, as Raj OR Ram is single, however Raj AND Ram would be plural.
I hope this helps!