Viraj swims for 1221 hours while going 24 km down stream and 36 km upstream. But he takes just 12 hours to swim 36 km down steam and 24 km up stream. At what rate is the river flowing ?
Held on 20 Aug 2022 · Verified 13 Jul 2026.
1.1 km/hr
2.1 km/hr
3.1 km/hr
4.1 km/hr
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