Question

Hero's Challenge: Cars At A StopLight

There are five cars in line at a stoplight. Each of these cars is a different color and different type of car. Diego is driving the red car. Ingrid is driving the sedan. The green car is immediately behind the white car. The minivan is third in line. Rachel is driving the first car in line. Anton is just behind the driver in the SUV. Yuna is driving the green car. The driver in the yellow car is just in front of the convertible. Rachel is just in front of the blue car. The sedan is white. One of the cars is a pickup truck. Who is driving the pickup truck?

Answer 1

Summary of the problem:
Diego=Red
Ingrid=Sedan
White then Green
Rachel then 2 then Minivan
SUV then Anton
Yuna = Green
Yellow then Convertible
Rachel then Blue
Sedan=white
Now begin to combine in order:
1. Rachel
2 Blue
3 Minivan
Since IngridSedanWhite is followed by YunaGreen, these do not fit as 1,2 or 3 so they must be 4 and 5
4 IngridSedanWhite
5 YunaGreen
The only place yellow then convertible will fit is in 1 and 2. So:
1. RachelYellow
2 ConvertibleBlue
3 Minivan
4 IngridSedanWhite
5 YunaGreen
The SUV has to be 1 or 5, but Anton is behind it so the SUV must be #1. So:
1. RachelSUVYellow
2 AntonConvertibleBlue
3 Minivan
4 IngridSedanWhite
5 YunaGreen
The only color missing is Red so Diego must be driving the minivan:
1. RachelSUVYellow
2 AntonConvertibleBlue
3 DiegoMinivanRed
4 IngridSedanWhite
5 YunaGreen
This leaves Yuna to be driving the green pickup truck.