Mathematics, 28.02.2021 23:20 demetriusmoorep36146
Two buttons with smiling faces and two buttons with sad faces are in a row as shown in the picture (attached below). when you press a button the face changes, and so do the faces of the neighboring buttons. what is the minimum number of button presses needed so that only smiling faces can be seen? Note: neighboring buttons = buttons NEXT to it.
Answers: 1
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Two buttons with smiling faces and two buttons with sad faces are in a row as shown in the picture (...
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