State pension

[Boto]

As the rules regarding state pensions are changing/have changed so that you have to work for 30 years to be entitled to a full pension, am I correct in thinking that if I have paid NI for say 25 years and the full pension is, say �100 then I would be entitled to a pension of 25/30 x 100 = �83 approx. Can anyone help? Thanks a lot.

[buildersmate]

The rules change if you are due to reach state pension age after April 2010. This is 65 for males, 60 for women, though the retirement age for women increases progressively from this date to move the state pensionable age to women to be 65 also.
Yes, you are correct that you need 30 qualifying years of contributions or credits to qualify for a full Basic State Pension. This is basic state pension we are talking - not Second State Pension which is an add-on.
Yes, if you don't have the necessary 30 qualifying years then you will get a proportion of one-thirtieth for each qualifying year you have.