Read the following passage and solve the questions based on it.
Prakash, Qureshi, Rajesh and Shabdesh live together in a house.
(i) Prakash lives with his (or her) parents.
(ii) Qureshi lives with at least 3 persons younger than him (or her).
(iii) Shabdesh lives with his mother, and is older than at least 2 persons living with him.
(iv) Rajesh lives with his (or her) son and is not older than Shabdesh.
Above given people are the only persons living in that house.
The total number of persons in that house is ___.