The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:
1.2 km
1.8 km
2.4 km
3.6 km
Explanation:
Speed downstream = (15 + 3) kmph = 18 kmph.
| Distance travelled =$ \left(18 \times\dfrac{12}{60} \right) $km = 3.6 km. |