KS:361/121::GD: = ?
If you arrange Alphabets in serial number
A = 1
B = 2
c = 3
.
.
Z = 26
you see K = 11, S = 19 similarly G = 7 and D = 4
KS:361/121::GD: = ?
KS :19 x 19 /11 x 11 :: GD : 7 x 7/ 4 x 4
KS:361/121::GD: = 49/16