The boat’s own speed is 14.8 km / h downstream, the boat sailed for 3 hours

The boat’s own speed is 14.8 km / h downstream, the boat sailed for 3 hours and against the current for 4 hours how far the boat sailed if the current speed is 2.3 km / h.

First, you need to find the pace of the boat downstream, we must add the pace of the current to our own pace:

14.8 + 2.3 = 17.1 km / h.

Next, we must calculate the distance of the boat in 3 hours downstream:

17.1 * 3 = 51.3 km.

Then we calculate the speed of the boat against the pace of the river:

14.8 – 2.3 = 12.5 km / h.

Now we will calculate the distance that the boat covered in 4 hours against the current speed:

12.5 * 4 = 50 km.

And now we find out how many kilometers the boat sailed:

50 + 51.3 = 101.3 km.

Answer: the boat sailed 101.3 kilometers in total.