How many cards has Barbara received ?

Bethany has received 25 Christmas cards,
Diane has received 49,
Carla has received 31 and
Adele has received 14.
How many cards has Barbara received?

Use Logic to get to the answer.



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Logic :
The card numbers are corresponding to the positions of the first 2 letters of the receiver's name in the alphabet series.
ADELE => A=1, D=4 => 14.
BETHANY => B=2, E=5 => 25.
CARLA