Question

A boat in the direction of flow covers a distance of 60 km in 4 hours. If speed of the boat is double the speed of flow then how much distance it covers in 2 hours opposite the flow?
Give Correct Answer With Correct Explanation.​

Answer 1

Answer:

10 km

Step-by-step explanation:

Since 12X = 60, we get X = 5 km / Hour. The speed of the Boat in the opposite direction of the River would be 2X - X = X km / Hour. In 2 Hours, with X km / Hour speed the Boat would go 2*X = 2X km and since X = 5, it would go 2*5 = 10 kms

Answer 2

Answer:

Let speed of river be x and boat speed 2x ,so 60/(2x+x)=4 or x=60/(3*4)=5 kmph. So boat speed is 10 know.Now 2*(10–5)=10 km it will go in 2 hrs in opposite direction of the flow.