From statement II: Let Birla invested Rs. x Then, Tata = x + 5000 And Ambani = x + 5000 + 4000 = x + 9000 ∴ Their total investment = Rs. (x + x + 5000 + x + 9000) From I and II: (x + x + 5000 + x + 9000) = 50000 ⇒ 3x = 36000 ⇒ x = 12000 Ratio of their investment = Ambani : Tata : Birla = 21000 : 17000 : 12000 = 21 : 17 : 12 ∴ Ambani’s share = 35000 × 21/50 = Rs. 14700 ∴ Both statements are required to answer the question.