Answers

2014-04-27T11:25:47+05:30
The plural of dozen is dozenes
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It is improper. the right one is-
When you put a number before it, there's no plural ending. You can go to the store and buy two dozen eggs. However, if there is no number (or other word signifying an amount, such as "few" or "several"), then you add an s to make it plural. Dozens of people came to the program.
1st correct your sentence formation
2014-04-27T11:26:23+05:30
Like we say i want dozen of apple
we cansay dozens of apple therefore 
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