Question
A grey box has 3 times as many balls as a white box. Mark added 9 balls to the grey box and 12 balls to the white box. If there are 2 times as many balls in the grey box as the white box, what was the total number of balls in the two boxes after Mark added the balls?
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A grey box has 3 times as many balls as a white box. Mark added 9 balls to the grey box and 12 balls to the white box. If there are 2 times as many balls in the grey box as the white box, what was the total number of balls in the two boxes after Mark added the balls?