Answers

2014-07-07T13:57:18+05:30
A=1
B=3
C=5
The number increase by 2 (the difference is 2) so...
D=5+2=7
E=7+2=9
F=9+2=11

the general formula will be
a+(n-1)*difference.

F A Z E D
F=9
A=1
Z is the 26 th letter, and has the value 
1+(26-1)*2=51
E=9
D=7

The sum will be
9+1+51+9+7=
10+60+7=
70+9=79
1 5 1