There are two households. Household A consists of seven members (Amrita, Ankita, Sandhya, Shikha, Reeta, Rinki, and Nishi), while Household B contains five (Tripti, Amrita, Anshu, Chandani, and Pratika). Each family contains just one married pair. In Family A, the husband and wife are identical in age, and the same applies to the married couple in Family B. Among the twelve individuals, only Tripti and Shikha are male. The eldest individual of Family B shares the same age as the fourth eldest in Household A.

Table–1 shows the percentage distribution of the ages of all the persons of Household A and Table–2 shows the percentage distribution of the ages of all the persons of Household B.

Member	Ages
Amrita	5c%
Ankita	2b%
Sandhya	(a + b/2)%
Shikha	4(b + c)%
Reeta	(2a - c)%
Rinki	2(2b - c) %
Nisha	(b - c) %

 

Member	Ages
Tripti	2a%
Arnika	2c%
Anshu	5b%
Chandani	(2a + b)%
Pratika	(2a - b - 2c)%

Today is the birthday of each person. No person among the 12 persons is more than 100 years of age. Arithmetic values of a, b and c are different and positive.