CAT 1996 — QA Question 43
Answer the questions based on the following information.
A series S1 of five positive integers is such that the third term is half the first term and the fifth term is 20 more than the first term. In series S2, the nth term defined as the difference between the (n + 1)th term and the nth term of series S1, is an arithmetic progression with a common difference of 30.
Direction: Each question is followed by two statements, I and II. Mark the answer as
1. if the question cannot be answered even with the help of both the statements taken together.
2. if the question can be answered by any one of the two statements.
3. if each statement alone is sufficient to answer the question, but not the other one (e.g. statement I alone is required to answer the question, but not statement II and vice versa).
4. if both statements I and II together are needed to answer the question.
How many different triangles can be formed?
I. There are 16 coplanar, straight lines.
II. No two lines are parallel.
Answer & solution
Answer: 1
The question cannot be answered until and unless number of concurrent lines are known.