Unfortunately that is not the correct answer
The correct answer and explanation are shown below.
After reviewing their mistakes with explanations the pupil is then given similar practice questions to do. Time is spent working on these weaker areas, not on topics they already understand. At a later date learning is consolidated with similar questions in a retest. To see BOFA's unique 3-step formative process try a full demo test here.
For a more detailed overview of BOFAmaths check out our how it works page.