There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.1) Which is the fourth letter ? ( B / D / F/ E)2) what is the difference between A and F? ( 3 /4/ 5/ 6)3 Choose 4 consecutive letters? ( ABCD / BDFE / AEFB / NONE OF THESE )