Exercise :: Problems on Trains  Data Sufficiency 2
 Problems on Trains  Important Formulas
 Problems on Trains  General Questions
 Problems on Trains  Data Sufficiency 1
 Problems on Trains  Data Sufficiency 2
 Problems on Trains  Data Sufficiency 3
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: Let the speed of the train be x metres/sec.
Length of train = 330 m.
Correct answer is (D). 
2. 


Answer: Option A Explanation: Let the speed of the train be x metres/sec.
Thus I and II give the speed of the train. The correct answer is (A.) 