Thursday, February 26, 2015

February 27 on Joss Paper

A large 30 cm x 30 cm sheet is fokded like origami and opened up to form an ingot-looking piece.

Two pieces is 10 cm tall when stacked as shown. Four pieces is 15 cm tall.

How tall is one piece?

This is a problem-solving situations - problems of similar structure have appeared in previous PSLE with situations where chairs / bowls are stacked.

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