Logic

Solution to Puzzle L-12. ICE CREAM SUNDAE

Ben, Carol, Fenny, and Harry went to a bar to have ice cream sundaes. Each of their ice cream two flavors from among the following: Chocolate, vanilla, raspberry, and strawberry.

To solve this puzzle, create a table below with Y representing flavors chosen, and X representing flavors not chosen.

Since Ben did not have chocolate, Carol did not have vanilla, Fenny did not have raspberry, Carol had strawberry, and Harry did not have strawberry, we have the following table:

chocolate vanilla raspberry strawberry

Ben X

Carol X Y

Fenny X

Harry X

Since Carol and Fenny did not have any flavors in common, we have

chocolate vanilla raspberry strawberry

Ben X

Carol X X Y Y

Fenny Y Y X X

Harry X

Two of them had strawberry, therefore we have

chocolate vanilla raspberry strawberry

Ben X Y

Carol X X Y Y

Fenny Y Y X X

Harry X

Two of them had chocolate, therefore we have

chocolate

vanilla

raspberry

strawberry

Ben

X

Y

Carol

X

X

Y

Y

Fenny

Y

Y

X

X

Harry

Y

X

Three of them ordered vanilla, therefore we have

chocolate

vanilla

raspberry

strawberry

Ben

X

Y

X

Y

Carol

X

X

Y

Y

Fenny

Y

Y

X

X

Harry

Y

Y

X

X

Based on the table above,

Ben had vanilla and strawberry,

Carol had raspberry and strawberry.

Both Harry and Fenny had chocolate and vanilla.

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