Exercise :: Boats and Streams  Data Sufficiency 2
 Boats and Streams  Important Formulas
 Boats and Streams  General Questions
 Boats and Streams  Data Sufficiency 1
 Boats and Streams  Data Sufficiency 2
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
1. 


Answer: Option D Explanation:
From II and III, we get:
8y = 24 + 6y y = 12.
Similarly, I and III also give the answer. Correct answer is (D). 