CAT 2000 — DILR Question 1
Linear ArrangementEasy
Persons X, Y, Z and Q live in red, green, yellow or blue coloured houses placed in a sequence on a street. Z lives in a yellow house. The green house is adjacent to the blue house. X does not live adjacent to Z. The yellow house is in between the green and red houses. The colour of the house X lives in is
Answer & solution
blue
- B
green
- C
red
- D
not possible to determine
Solution
The yellow house is between the red and the green house. Also, the green house is adjacent to the blue house.
∴ There are two possible arrangements of the houses.
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Z lives in the yellow house. X does not live adjacent to Z. In both the cases, X cannot live in either the red or the green house.
∴ X lives in the blue house.
Hence, option (a).