The speed of a boat in still water is 15 km / hr and the rate of current is 3 km / hr. The distance travelled downstream in 12 minutes is `1. 2\ k m` b. `1. 8\ k m` c. `2. 4\ k m` d. `3. 6\ k m`

The speed of a boat in still water is 15km/hr and the rate of current is 3km/hr .The distance travelled downstream in 12 minutes is 1.2backslash km b.1.8backslash km c.2.4backslash km d.3.6backslash km

The speed of boat in downstream is 15 km/hr and the speed of the current is 2.5 km/hr. The speed of boat against the current is: