GCSE · Venn diagrams & set notation

Venn diagramsExam-style questions

Building a Venn diagram from worded information — why you fill the overlap first and work outwards, what the number in a region actually counts, the universal set and the "neither" region outside the circles, and how the grand total pins down whichever region is missing.

13 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    4040 people were asked whether they like tea and whether they like coffee.

    2424 of them like tea and 2121 of them like coffee.

    The Venn diagram shows some of this information. TT is the group who like tea, CC is the group who like coffee, and xx is the number of people who like both.ξ3TCx(a) Work out the value of xx.

    (b) Write down how many of the 4040 people like tea but not coffee.
    Level 4 · 4 marksTry it
  2. 2
    5050 students were asked which of the art club (AA), the drama club (DD) and the music club (MM) they attend.

    The Venn diagram shows the results.ξ14ADM9765432(a) Work out how many students attend the art club.

    (b) Work out how many students attend exactly two of the three clubs.

    (c) Work out how many students attend at least one club.
    Level 4 · 6 marksTry it
  3. 3
    6060 pupils were asked which of football, netball and rounders they play.
    • 2828 play football,
    • 2525 play netball,
    • 2222 play rounders,
    • 1010 play football and netball,
    • 88 play football and rounders,
    • 99 play netball and rounders,
    • 44 play all three sports.
    Here is an empty Venn diagram, with the circles labelled FF (football), NN (netball) and RR (rounders).ξFNR(a) Copy the diagram and write the correct number of pupils in each of the seven regions inside the circles.

    (b) Work out how many of the 6060 pupils play none of the three sports.
    Level 4 · 6 marksTry it
  4. 4
    A school surveyed 140140 students about the devices they own: a laptop (LL), a tablet (TT) and a games console (GG).

    1616 students own none of these devices.

    5353 students own a laptop.

    3838 students own a games console.

    1919 students own a laptop and a tablet.

    1515 students own a laptop and a games console.

    1111 students own a tablet and a games console.

    77 students own all three devices.
    (a) Complete the Venn diagram for this information.ξLTG(4 marks)

    One of the students who own a games console is chosen at random.
    (b) Work out the probability that this student does not own a laptop.

    (2 marks)
    Level 4 · 6 marksTry it