Dear BelArgUSA...
thank you for your great and detailed reply on this matter.
what made me do this info collecting is that i came across some websites and also heard that some airlines required total hours (including hrs on type) are 3500 and one of the airlines is ( ryan air ).
i am sure that easy jet will be in the same range.
i am also thinking that if a f/o flies A340 for 5000hrs and another f/o flies A320 for 5000hrs . the A320 f/o will doing more sectors and more t/o and ldgs than the A340 f/o who is mostly doing long sectors.
so the company who are dealing with large a/c and long sectors should have the 5000hrs requirment.
and the company who are dealing with short haul a/c (low cost and high number of sectors per month hence per year) should have somthing like 3000-4000 hrs requirment.