1) The ratio of expenditures of companies A and B in 2012 was 3: 4 respectively. What was the respective ratio of their incomes in 2012? A) 21:26 B) 13:14 C) 14:13 D) 26:21 E) None of these Answer: Option EExplanation:For company A, in 2012 P% = I−EE×100 30 = I−33×100 90 = 100I - 300 390100 = I = 3.9 For company B, In 2012 P% = I−EE×100 40 = v 160 = 100I - 400 560100 = I = 5.6 Then required ratio = 3.95.6 = 39:56