Valet Brainteaser

Otis

Elite Member
Joined
Apr 22, 2015
Messages
3,760
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?


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Harry_the_cat

Elite Member
Joined
Mar 16, 2016
Messages
2,990
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?


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M M R M R L J L L
 
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