In still water, a boat's speed is 15 km/hr, while the rate of current is 3 km/hr. In 12 minutes, you'll have covered the following distance:
A. 1.2 km
B. 1.8 km
C. 2.4 km
D. 3.6 km
Answer:D
In still water, a boat's speed is 15 km/hr, while the rate of current is 3 km/hr. In 12 minutes, you'll have covered the following distance:
A. 1.2 km B. 1.8 km C. 2.4 km D. 3.6 km
Explanation: Downstream speed = (15 + 3) kmph = 18 kmph,18 × 12/60 km = 3.6 km distance travelled.