P5/P6 Math: Stacked Rectangles with Overlapping Triangle

A few identical smaller rectangles are stacked(combined) to form a larger rectangle.

From the larger rectangle, a triangle is drawn from the same dimensions, with part of the triangle, overlapping the large rectangle. ( as shown in the question below).

Such questions can appear in both Paper 1 and Paper 2 of P5 or P6 Math exams.
Calculator may be allowed if double digit long division needs to be carried out.


The "Recycle" logo is also a triangle

The question below will randomize with different numbers every hour. 
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