GCSE: Open Box Problem

GCSE Maths questions

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• Level: GCSE
• Questions: 75

Applications of Differentiation

This can be solved using trial and error by forming a table and trying different possibilities of the squares that will be cut. Size of square Length of cuboid Width of cuboid Height of cuboid No. of cubes 1 x 1 18 10 1 180 2 x 2 16 8 2 256 3 x 3 14 6 3 252 4 x 4 12 4 4 192 Looking at the 1 x 1 square; if a 1 x 1 square is removed for the corners, the length becomes 20 -1 -1 =18cm.

• Word count: 657

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Global warming is an important factor because every one in the world but most importantly for me it will effect all of my relatives, as it is predicted that countries such as Bangladesh will be totally fooled due to global warming.

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