The length of the reservoir is 600 km. and the width is 400 km. A boat trip through the reservoir takes 10 hours

The length of the reservoir is 600 km. and the width is 400 km. A boat trip through the reservoir takes 10 hours longer along its length than it is wider. How long it takes at the same speed to cross the reservoir along its length and width.

The solution of the problem:
1. Let’s find how many kilometers the length of the reservoir is greater than the width of the reservoir.
600-400 = 200 kilometers
2. Determine at what speed the boat travels through the reservoir per hour.
200/10 = 20 kilometers
3. Let’s calculate how long it takes the boat to cross the reservoir along its length.
600/20 = 30 hours
4. Find how many hours the boat will cross the reservoir in width.
400/20 = 20 hours
Answer: A boat trip across the reservoir will take thirty hours in length, and twenty hours across the width of the reservoir.