Final answer:
Rukmani deals with the challenge of providing enough food for her many children, a common issue in larger families that can lead to malnutrition and affect children's educational opportunities.
Step-by-step explanation:
Rukmani, the character in question, contends with the disadvantage of having so many children that she faces a constant lack of food. The challenge is to provide sufficient nutrition for her growing family, which becomes increasingly difficult with each additional child.
This scenario is reflective of a broader social issue where larger family sizes can put significant strain on resources, leading to malnutrition and diet-related health problems, as well as hindering the educational opportunities available to the children due to economic constraints.