Select from following answers:- 2 km
- 2.4 km

- 3 km
- 2.6 km
- All Above
Speed downstream = (5 + 1) kmph = 6 kmph.
Speed upstream = (5 - 1) kmph = 4 kmph.
Let the required distance be x km.
Then, x/6 + x/4 = 1
2x + 3x = 12
5x = 12
x = 2.4 km.
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