Questions :64 to 66: Refer to the following information and chart:   Family A has an annual income of tk. 2,00, Family B has an annual income of tk. 5,00, Family C has an annual income of tk. 10,00, The following data gives the break-up of expenditures of A, B, and C in percentage terms. (Q-66): If the annual expenditure of family A on health is x and that of family B is y. Then which of the following relations is true?