Valet Brainteaser

[Otis]

Nine luxury cars — three Mercedes (M), three Lexuses (L), two Rolls-Royces (R), and one Jaguar (J) — are to be displayed side by side, left to right, at an auto show. The positions are numbered consecutively 1 to 9.

A. Three cars of the same brand are never in consecutive positions.

B. All the Mercedes and Rolls-Royces are to the left of the Jaguar and Lexuses.

C. One of the Rolls-Royces has exactly three other cars between it and the Jaguar.

D. One Lexus is immediately adjacent to a Rolls-Royce.

What is the order of the nine luxury cars?

?

 

[Harry_the_cat]

Nine luxury cars — three Mercedes (M), three Lexuses (L), two Rolls-Royces (R), and one Jaguar (J) — are to be displayed side by side, left to right, at an auto show. The positions are numbered consecutively 1 to 9.

A. Three cars of the same brand are never in consecutive positions.

B. All the Mercedes and Rolls-Royces are to the left of the Jaguar and Lexuses.

C. One of the Rolls-Royces has exactly three other cars between it and the Jaguar.

D. One Lexus is immediately adjacent to a Rolls-Royce.

What is the order of the nine luxury cars?

?

Spoiler

M M R M R L J L L