Directions: Questions are based on the following:<br /> 1. In a family of 7 persons, there are two couples.<br /> 2. The lawyer is the head of the family and has two sons - Mukesh and Rakesh - both teachers.<br /> 3. Mrs. Reena and her mother-in-law both are lawyers.<br /> 4. Mukesh's wife is a doctor and they have a son Ajay.<br /> Which of the following is definitely a couple?
$$ \begin{array}{c} \text{Lawyer (Father)} \iff \text{Lawyer (Mother)} \\ \downarrow \\ \begin{array}{ccc} \text{Mukesh (Teacher)} \iff \text{Doctor (Wife)} & \quad & \text{Rakesh (Teacher)} \iff \text{Reena (Lawyer)} \\ \downarrow & & \\ \text{Ajay} & & \end{array} \end{array} $$
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