CAT 2001 — QA Question 53
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.
On a given day a boat ferried 1500 passengers across the river in twelve hours. How many round trips did it make?
- The boat can carry two hundred passengers at any time.
- It takes 40 minutes each way and 20 minutes of waiting time at each terminal.
Answer & solution
Correct answer: 1
1
- B
2
- C
3
- D
4
Statement A only gives the maximum capacity of the boat.
∴ The number of trips cannot be calculated.
∴ Statement A alone is not sufficient to answer the question.
Using statement B alone:
Time required to make one round trip = 40 + 40 + 40 = 120 minutes = 2 hours
∴ The total number of trips made = 12/2 = 6
∴ Statement B alone is sufficient to answer the question.
Hence, option (a).