Four people (William, Ivan, Y.C., and Ralph) with last names Lindros, Usaber, Wallace, and Tavarez, each sold a number of old hawaiian t-shirts.
Each person was of a different occupation: undergraduate student, valet, graphic artist, and engineer.
If each person sold one of the following amounts of old hawaiian t-shirts, (18, 1, 7, and 12) can you figure out the first name, last name, and how many old hawaiian t-shirts each person sold?
The valet isn't Ralph Lindros.
Tavarez sold less old hawaiian t-shirts than the valet, and less than Ralph.
The person who sold 18 old hawaiian t-shirts is not named Ralph or Usaber.
Usaber and Ivan aren't the person who sold 1 old hawaiian t-shirts.
Ivan, Lindros, and the person who sold 1 old hawaiian t-shirts each had different dinners last night.
Y.C., the person who sold 18 old hawaiian t-shirts, and the engineer go shopping together on Saturdays.
Lindros sold less old hawaiian t-shirts than the valet, and more than William.
William went with Lindros to the amusement park one day.
The person who was the graphic artist. All four people are mentioned in this clue.
Y.C. is not the person who sold 12 old hawaiian t-shirts, nor has the last name Usaber.
William, Tavarez, and Ivan were not the person who sold 12 old hawaiian t-shirts.
William, the person who sold 12 old hawaiian t-shirts, and the valet go shopping together on Saturdays.
Y.C. is not the person who sold 7 old hawaiian t-shirts, nor has the last name Wallace.
Wallace sold more old hawaiian t-shirts than the engineer, and more than Ralph.
The engineer, whose first name is William, wasn't the person who sold 12 old hawaiian t-shirts.
The engineer, who sold 7 old hawaiian t-shirts, isn't Wallace.
The undergraduate student isn't William Usaber.
Lin
Usa
Wal
Tav
und
val
gra
eng
18
1
7
12
Wil
Iva
Y.C
Ral
18
1
7
12
und
val
gra
eng
Place a N in any square that is a definite "no" and a Y in any square that is a definite "yes". I give up!