Comprehension Passage
Directions: Answer the question based on the information given below:
The given table shows the speed of the boat (in km/h) in still water, the speed (in km/h) of the stream, and the downstream speed of the boat (in km/h) in four different rivers (A, B, C, and D). Some values are missing in the table you have to find the missing values and answer the given question accordingly.
|
Rivers |
Speed of Boat in still water (in km/h) |
Speed of Stream (in km/h) |
Downstream speed of the boat (in km/h) |
|
A |
x |
4 |
(y + 6) |
|
B |
(x + 8) |
y |
26 |
|
C |
(x + 4) |
y |
22 |
|
D |
(x + 2) |
2 |
14 |
Note: Consider all values in positive integers.
On a given day the speed of stream in all the rivers increases by 4km/h and speed of boats in still water in all the rivers decreases by 1km/h, then total distance travelled by boats in all the rivers downstream for 9hrs is_______ more than the total distance travelled by all the boats upstream of 12hrs?
1
648km
2
687km
3
176km
4
172km
5
None of these