AQA AS Biology Fruit Juice ISA Grade Boundaries (2011)

Does anyone know the grade boundaries for the Biology ISA? (The effect of enzymes on Fruit Juice production).
It was out of 50.
The exam board is AQA.

According to what I was was told today:

A: 48
B: 42
C: 36
D: 30
E: 24

This seems ridiculously high, and I'm not sure if it is correct.

I assumed that:

A: 40 (80%)
B: 35 (70%)
C: 30 (60%)
D: 25 (50%)
E: 20 (40%)

Does anyone know the grade boundaries for this?

It is Biology AQA (AS Level)
The fruit Juice ISA - The effect of enzymes on fruit juice production (Pectinase, Cellulase)
Done in Jan - Mar 2011

No youve been lied to.
The actual grade boundaries are:
(out of 50)
this was for june 2009. June 2010 was one mark higher for each grade boundary.
A - 38
B - 35
C - 32
D - 29
E - 27

Hello Thank you
What source did you use to find these?
The marks between the boundaries are so narrow! But I'm glad that I didn't need to get 48 to get an A, that is a HUGE relief!

No youve been lied to.
The actual grade boundaries are:
(out of 50)
this was for june 2009. June 2010 was one mark higher for each grade boundary.
A - 38
B - 35
C - 32
D - 29
E - 27