Interactive practice questions
A student creates the following diagram of their favourite animals.
A Venn diagram with two overlapping circles inside a rectangle. The left circle is labeled "Four legs" and is shaded light blue. The right circle is labeled "Stripes" and is shaded light green. The overlapping section of the circles is shaded a lighter green-blue color. The rectangle is shaded pink. Within the blue "Four legs" circle but outside the overlap, the animals are "Turtle", "Hippo", "Lion", and "Elephant". Within the green "Stripes" circle but outside the overlap, the animal is "Clown fish". Within the overlap are "Zebra" and "Tiger".
Outside both circles but inside the rectangle are the animals "Crow" and "Kangaroo".
How many of the animals have four legs?
How many of the animals have four legs and stripes?
How many of the animals have four legs or stripes, but not both?
A jeweller has arranged his gems based on the cut and colour of the gem:
Cuts - triangular 
, rectangular 
, and octagonal 
Colours - amethysts 
, emeralds 
, and rubies 
A jeweller has arranged his gems based on the cut and colour of the gem:
Cuts - triangular , rectangular , and octagonal
Colours - amethysts , emeralds , and rubies
A group of students were asked about their siblings. The two categories show if they have at least one brother, and if they have at least one sister.