The distance between the quays is 150 km, the ship passed in 6 hours. How long will the motor

The distance between the quays is 150 km, the ship passed in 6 hours. How long will the motor ship take all the way back and forth at the same speed.

1. Let’s find the speed of the ship, for this we divide the distance that it passed by the time:

150: 6 = 25 (km / h).

2. Let us find how many km will be the route of the motor ship there and back, for this we multiply the distance between the piers by two:

150 * 2 = 300 (km).

3. Let’s find the time that the ship will spend on the way back and forth:

300: 25 = 12 (hour).

Answer: in 12 hours the ship will pass the way between the quays there and back.