CAT 2001 — QA Question 55
Answer the following question based on the information given below.
The petrol consumption rate of a new model car 'Palto' depends on its speed and may be described by the graph below

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.
A square is inscribed in a circle. What is the difference between the area of the circle and that of the square?
- The diameter of the circle is 25 cm.
- The side of the square is 25 cm.
Answer & solution
- A
1
2
- C
3
- D
4
Using statement A alone:
âµ Diameter of the circle = Diagonal of the square
∴ Area of the square can be computed and thus the required difference.
∴ Statement A alone is sufficient to answer the question.
Using statement B alone:
âµ Diagonal of the square = × side = Diameter of the circle
∴ Area of the circle can be computed and thus the required difference.
∴ Statement B alone is also sufficient to answer the question.
∴ We can answer the question using either statement alone.
Hence, option (b).