Three switches are to be installed in a panel. The switches are each 2 1/2 inches wide. There will be 1 1/4 inches clearance between switches and 3 7/8 inches between any switch and the edge of the box. How wide is the box?

AAAaannndd the bot gets it wrong yet again!

3 7/8 + 3(2 1/2) + 2(1 1/4) + 3 7/8 = 17 3/4

The box is 11 1/4 inches wide.