In such type of questions, clues are given regarding comparisons among a set of persons or things with respect to one or more qualities. The candidate is required to analyse the whole information, form a proper ascending / descending sequence and then answer the given questions accordingly.
A * B means A and B are of the same age;
A - B means B is younger than A;
A + B means A is younger than B;
Sachin * Madan - Reena means
Sachin * Madan - Reena means Sachin and Madan are of the same age and Reena is younger than Madan. This means that Reena is the youngest.