POSTMAN => bfglrvz OMEN ⇒ dfrz Common letters OMN ⇒ frz Therefore, code of E = d PSTA ⇒ bglv Option (1) Letter ‘d‘ is the code of E. But there is no E in NORTH. Option (2) In option (2) also there is a ‘d' Option (3) rz may be the code of NO. Then, RTH ⇒ bcl But, PSTA = bglv Option (4) NO ⇒ fz T ⇒ b RH ⇒ co