Question

An investigation of 23,713 households was made in an urban and rural mixed locality. Of these 1,618 were farmers, 2,015 well-to-do and 770 families were having at least one
graduate. Of these graduate families 335 were those of farmers and 428 were well-to-do,
also 587 well-to-do families were those of farmers and out of them only 156 were having
at least one of their family member as graduate. Obtain all the ultimate class frequencies.​

Answer 1

Answer:

I cannot understand this question