A Prince George's County man and two Baltimore County real estate agents who apparently were kidnaped in two separate and unexplained incidents last week were found in good condition late last night at a New Jersey motel where they had been left bound and gagged.

The two real estate agents were last seen around noon Saturday in Harford County, Md., after showing three persons a Baltimore County house. The Prince George's County man, identified as Clarence Knight, 23, of Greenbelt, was last reported seen on Wednesday.

Authorities linked the disappearances after finding Knight's car in the parking lot of the Merrill Lynch Realty-Chris Coile Inc., office in Rosedale, Md., where the two real estate agents work.

No motive for the bizarre kidnapings could be determined immediately last night, and the FBI and members of at least two police departments were interviewing the victims and possible witnesses at the motel in Bellmawr, N.J., just off the New Jersey Turnpike, where the victims were found.

Authorities said the victims were located after one of them apparently escaped from his bonds, called the motel management and helped free the other two.

Knight, according to Baltimore County police, was last seen at the Beltway Plaza shopping center in Greenbelt, where he offered a ride to a man who said his car had broken down.

The missing real estate agents were identified as Diane Dandy, 38, of Harford County, and Herbert Dowling Jr., 26, of Reisterstown in Baltimore County.

County police said two men and a woman stopped in the real estate office Saturday morning, asked to see homes valued at between $100,000 and $150,000 and left with the two real estate agents.

The trio and the agents went first to a home in the Perry Hall area of Baltimore County, then went to the company's office in Bel Air in Harford County, where they made appointments by telephone to view other houses.

Reportedly, two of the three said they wanted primarily to see houses with key boxes, special locks opened with a master key, placed on doors of homes that are not occupied. Police said they believe one of the three presumed customers was Knight, who they later learned had apparently also been abducted.

One investigator said last night that there was no indication ransom was involved in the kidnapings, and expressed doubt that the victims themselves know why they had been abducted.