Question
Barney can mow the lawn in 5 hours, and Fred can mow the lawn in 4 hours. How long will it take them to mow the lawn together?
Answers
GPT 3.5
To find out how long it will take them to mow the lawn together, we can use the formula:
1/Time Taken = 1/Time A + 1/Time B
Let's plug in the given values:
1/Time Taken = 1/5 + 1/4
To simplify this equation, we need to find a common denominator. In this case, it is 20.
1/Time Taken = 4/20 + 5/20
1/Time Taken = 9/20
We can flip both sides of the equation to get:
Time Taken = 20/9
So, it will take them approximately 2.22 hours to mow the lawn together.
1/Time Taken = 1/Time A + 1/Time B
Let's plug in the given values:
1/Time Taken = 1/5 + 1/4
To simplify this equation, we need to find a common denominator. In this case, it is 20.
1/Time Taken = 4/20 + 5/20
1/Time Taken = 9/20
We can flip both sides of the equation to get:
Time Taken = 20/9
So, it will take them approximately 2.22 hours to mow the lawn together.