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UCEED 2022

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Q2.The figure shows different paths for going from A to B. The directions of the paths are indicated by arrows. No node can be visited twice. What is the total number of different paths to go from A to B?

UCEED2022Q1·nat·Hard208 attempts

A solid square pyramid has triangular cut-outs that pass through and through, as shown in the figure. How many surfaces are there in the resultant solid?

Keyboards off — use the numpad, just like on exam day.