Final answer:
The ratio of the capacities of a man and a woman is 5:3.
Step-by-step explanation:
To solve this problem, let's first assign variables to represent the capacities of a man and a woman. Let's say the capacity of a man is 5x and the capacity of a woman is 3x.
According to the given information, 6 men and 8 women can do as much work as 3 men and 13 women. We can set up the following equation:
6(5x) + 8(3x) = 3(5x) + 13(3x)
Simplifying the equation, we get:
30x + 24x = 15x + 39x
54x = 54x
Since both sides are equal, we can conclude that the ratio of the capacities of a man and a woman is 5:3.