Frank, Gertrude, Harry, Ingrid, and Jason have
Christmas gathering together, where special pizza with multiple toppings were
served. Each ate a pizza with four of the following toppings:
Sausage, Pepperoni, Mushroom, Olive, Onion, Chicken, and Green Pepper.
The only topping Frank and Gertrude have in common is
Sausage.
The only topping Harry and Gertrude have in common is
Pepperoni.
The only topping Harry and Ingrid have in common is
Chicken.
The only topping Jason and Ingrid have in common is
Green Pepper.
Gertrude had mushroom for topping.
Based on the above, the topping each has are marked
'Y' below:
|
Sausage |
Pepperoni |
Chicken |
Green Pepper |
Mushroom |
Olives |
Onion |
Frank |
Y |
|
Y |
|
|
Y |
Y |
Gertrude |
Y |
Y |
|
Y |
Y |
|
|
Harry |
|
Y |
Y |
|
|
Y |
Y |
Ingrid |
Y |
|
Y |
Y |
Y |
|
|
Jason |
|
Y |
|
Y |
|
Y |
Y |
|