Twelve people entered a room....

Twelve people entered a room.  Three more than two-thirds of these people then left.  How many people remain
in the room ?

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Find two-thirds of 12

(2/3) x 12
= 8   {multiplied}

Find three more than that two-thirds
= 8 + 3   
= 11   {added}

12 people entered and 11 people left.

1 person remains in the room.

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