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Railways PYQCBT 2 2017

RRB NTPC · Question 95

In a party, every couple has at least one child (all minors) with them and there are 12 couples. Which one of the following inferences would be possible?

  1. There are a minimum of 24 males in the party.

  2. There are a minimum of 36 people in the party.

  3. There are only 12 males in the party.

  4. There are 22 females in the party.

Show answer & explanation

Answer: (B) There are a minimum of 36 people in the party.

Explanation

12 couples are 24 adults, and each couple has at least one child, so at least 12 children: a minimum of 36 people. The numbers of males and females cannot be fixed, because the children's genders are unknown.