Chapter 3 - Problem Set - Pg 45 - Subject Verb agreement

[aditya20012005]

Hi,

I have a doubt regarding the Subject verb agreement in the ManhattanGMAT SC guide.

In the problem set of Chapter 3, the solution to #6 and #15 are at odds with each other.

#6 solution says:
The recent string of burglaries, in addition to poor building maintenance, has inspired the outspoken resident to call a tenants meeting.

Subject is "String" and verb is "has".

#15 is:
The proliferation of computer games designed to involve many players at once were/was first developed before the widespread availability of high-speed Internet connections.

Now #15 is incorrect because the sentence says that poliferation were/was (I assume "was" is apt here although meaning is incorrect) first developed.

But the same case applies to #6
The sentence means that a "string" has inspired residents.

If in #6 the subject is "String of burglaries" then in #15 can the subject be "proliferation of computer games" ?

Thanks

[tim]

there is no discrepancy at all. 15 had a couple of problems, and the book fixed them in the most efficient manner possible by simply changing the subject. note that the book even indicated that several different solutions would have been acceptable for 15..