PrepTest 27, Section 1, Question 20
Six cars are to be arranged in a straight line, and will be numbered 1 through 6, in order, from the front of the line to the back of the line. Each car is exactly one color: two are green, two are orange, and two are purple. The arrangement of cars is restricted as follows:
Six cars are to be arranged in a straight line, and will be numbered 1 through 6, in order, from the front of the line to the back of the line. Each car is exactly one color: two are green, two are orange, and two are purple. The arrangement of cars is restricted as follows:
Six cars are to be arranged in a straight line, and will be numbered 1 through 6, in order, from the front of the line to the back of the line. Each car is exactly one color: two are green, two are orange, and two are purple. The arrangement of cars is restricted as follows:
Six cars are to be arranged in a straight line, and will be numbered 1 through 6, in order, from the front of the line to the back of the line. Each car is exactly one color: two are green, two are orange, and two are purple. The arrangement of cars is restricted as follows:
No car can be the same color as any car next to it in line.
Either car 5 or car 6 must be purple.
Car 1 cannot be orange.
Car 4 cannot be green.
The cars in which one of the following pairs CANNOT be the same color as each other?
cars 1 and 4
cars 1 and 5
cars 3 and 5
cars 3 and 6
cars 4 and 6
Explanations
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