CA Foundation · Quantitative Aptitude · Blood Relations
Ravi has 3 sisters. Each sister has exactly one brother, and that brother is Ravi. Ravi's parents are alive and there are no other children. Including Ravi and his parents, how many persons are in the family?
The family has 6 persons: Ravi, his 3 sisters and his 2 parents. Since Ravi is the only brother of each sister, there are no other sons, so the children number four and the parents add two more.
- A5
- B6Correct
- C7
- D8
Explanation
Children: Ravi plus 3 sisters = 4 children. Each sister's only brother is Ravi, so there are no more boys. Adding the 2 parents gives 4 + 2 = 6. The answer 5 results from forgetting one parent or one child.
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