Logical Reasoning :: Data Sufficiency
In this type of reasoning questions, each question is followed by two statements numbered I and II. You are required to analyze the data of both the statements and decide whether the statements are sufficient to answer the question. After analyzing the statements, you have to choose the appropriate answer out of the four answer choices which are as follows;
 If the statement I alone is sufficient to answer the question, but statement II alone is not sufficient
 If the statement II alone is sufficient to answer the question, but the statement I alone is not sufficient
 If either I or II alone is sufficient to answer the question
 If the data in both the statements together are not sufficient to answer the question
 If the data in both the statements are needed to answer the question

What is Geeta's rank in the class?
I. There are 30 students in the class.
II. There are 10 students who scored less than Geeta. 
Who is the mother of B?
I. P and Q are sisters.
II. Q's husband is the brother of B's husband. 
It is 6:00 pm, when can Deepak get next bus from Noida to Delhi?
I. Buses for Delhi leave after every 30 minutes, until 11 pm.
II. 20 minutes ago, a bus has left for Delhi. 
When is Rahul's birthday this year?
I. It is between March 8 and 10, March 8 being the Wednesday.
II. It is not on Friday. 
On which day of the week did Sohan reach Mumbai?
I. Sohan left Delhi by train on Wednesday.
II. Sohan stayed in Jaipur for one day and completed his journey in two days. 
How many brothers does Rahul have?
I. Rahul's father has three children.
II. Rahul has one sister. 
Deepak, Rahul, Manoj, and Kapil are brothers. Who is the heaviest?
I. Rahul is heavier than Deepak and Kapil, but lighter than Manoj.
II. Deepak is lighter than Rahul and Manoj, but heavier than Kapil. 
Sohan ranks fifth in the class. How many students are there in the class?
I. His friend ranks 52^{th} which is the last rank in the class.
II. Sohan's rank from the last is 48^{th}. 
At what time did Rahul leave home for office?
I. Rahul had his breakfast at 9:20 am at home.
II. Rahul reached office at 10:20 am, 30 minutes after he left home. 
When is Deepak's birthday?
I. Deepak's mother was born on 22 May 1970.
II. Deepak is 28 years younger than his father.