Three positive number whose sum is 21 are in arithmetic progression, If 2, 2,14 are added to them added to them respectively then resulting number are in geometric progression .Then which of the following is not among the three number ?

Three positive number whose sum is 21 are in arithmetic progression,

1.	Three positive number whose sum is 21 are in arithmetic progression, If 2, 2,14 are added to them added to them respectively then resulting number are in geometric progression .Then which of the following is not among the three number ?
A.	25
B.	13
C.	1
D.	7
Answer» B. 13