Short answer·Standard multi-step (3/5)·No calculator

Difficulty guide

The label describes the problem, not your ability.

1/5 - Foundational

Warm-up setup; checks one basic idea.

2/5 - Routine exam skill

Normal syllabus skill; usually one main rule or interpretation.

3/5 - Standard multi-step

Exam-style problem with multiple steps or a common trap.

4/5 - Hard exam skill

High-end exam problem; combines methods carefully.

5/5 - Challenge

Stretch problem beyond normal exam pressure.

Question

The table below gives the number of books read by 4040 students in a month: 00 books: 55, 11 book: 1414, 22 books: 1313, 33 books: 88. Convert the data into percentages for a 100%100\% stacked bar.
Total: 4 marks

(a) Find all four percentages. (4 marks)

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