GCSE Maths Practice: bar-charts

Question 1 of 10

Determine the number of students from the relative heights of bars in a chart.

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\( \begin{array}{l}\text{A bar chart compares shoe sizes of students.} \\ \text{The bar for size 7 is twice as tall as size 6.} \\ \text{If 5 students have size 6, how many have size 7?}\end{array} \)

Diagram

Choose one option:

Double-check which bar corresponds to which size.

Use the ratio of bar heights and known quantities to calculate the unknown.