Each question is followed by two statements, I and II. Answer each question using the following instructions.
Mark the answer as
- Choose $1$ if the question can be answered by using one of the statements alone, but cannot be answered using the other statement alone.
- Choose $2$ if the question can be answered by using either statement alone.
- Choose $3$ if the question can be answered by using both statements together, but cannot be answered using either statement alone.
- Choose $4$ if the question cannot be answered even by using both statements together.
There are two straight lines in the $x-y$ plane with equations $ax + by = c, dx + ey = f.$ Do the two straight lines intersect?
- $a, b, c, d, e$ and $f$ are distinct real numbers.
- $c$ and $f$ are non-zero
- $1$
- $2$
- $3$
- $4$