If a sailer sails 12 km distance within 5 hours against the flow of a river. If he sails 22 km distance in same time along the flow of the river. Then velocity of the river is _______
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Q:
If a sailer sails 12 km distance within 5 hours against the flow of a river. If he sails 22 km distance in same time along the flow of the river. Then velocity of the river is _______
- 11 km / hourtrue
- 22 km / hourfalse
- 31.5 km / hourfalse
- 42.5 km / hourfalse
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