carcass wrote:

A corporation paid $7 million in federal taxes on its
first $50 million of gross profits and then $30 million in federal taxes on the next $150 million in gross profits. By approximately what percent did the ratio of federal taxes to gross pro
fits increase from the
first $50 million in profits to the next $150 million in profits?

(A) 6%

(B) 14%

(C) 20%

(D) 23%

(E) 43%

The ratio in the first case is 7/50 and in the second case is 30/150 or 10/50

percentage increase is (difference/initial quantity)*100

(3/50)/(7/50)*100 = 300/7 = 42.85

correct option is E