If the productivity of a brigade grows by 12% when the number of the workers in the brigade is increased by one, then which of the following is closest to the ratio of the productivity of a 12-person brigade to that of a 10-person brigade?	Select the correct option.
A) 0.21 B) 0.82 C) 1.2 D) 1.232 E) 1.44
B = 10-men brigade   p = increase in the productivity = 12%   Solution: B x p = B x 1.12 = 1.12B -------&gt; the productivity of 11 men brigade   1.12B x p = 1.12B x 1.1 = 1.232B -----&gt; the productivity of 12 men brigade   The ratio of the productivity of a 12-men brigade to that of a 10-men brigade = 1.232B/B = 1.232   1.232
<result>D</result>
If the productivity of a brigade grows by 12% when the number of the workers in the brigade is increased by one, then which of the following is closest to the ratio of the productivity of a 12-person brigade to that of a 10-person brigade?