gmat math ability

[nikhil92]

had 2 questions in going over this review. The example of problems involving variables mentions 1,800 newspapers, however the solution and answers reflect 18,000. Did I miss something or was this just a typo? Here is the problem in question...

At a certain printing plant each of m machines print 6 newspapers in every s seconds. If all machines work together and independently without interruption
How many minutes will it take to print 1800 newspapers?

[Amiable Scholar]

Nikhil , It would be better if you post complete problem here with the options as well.
your query is not clear from the problem statement.