2. A white rabbit and a gray rabbit started picking mushrooms at the same time. The white rabbit picks 4 mushrooms per minute, and the gray rabbit picks 3 mushrooms per minute. After 10 minutes, the white rabbit gives half of the mushrooms it has picked to the gray rabbit, and then they continue picking. When the two rabbits have the same number of mushrooms, they have picked $\qquad$ mushrooms in total.
$280$