Comprehension Passage
Directions: Answer the questions based on the information given below.
The line graph given below illustrates the distances traveled (in km) by five different boats in the upstream and downstream directions over the same period of time.
The table provided below illustrates the sum of the still water speed and downstream speed (in km/hr) for each boat.
| Boats | Sum of the speed of boat in still water and downstream speed (in km/hr) |
|---|---|
| S | 60 |
| T | 56 |
| U | 95 |
| W | 60 |
| X | 100 |
Which of the following statements is true if the ratio of the speed of Boats 'S' and 'T' together in still water to the speed of Boats 'W' and 'X' together in still water is represented as (y2 - 1) : (z2 + 1) respectively?
1
'y' and 'z' are co-prime to each other.
2
The value of 'z' is 7.14% more than the value of 'y'.
3
The value of 'y' is 75% of the value of 'z'.
4
Both (1) and (2)
5
Both (1) and (3)