Correct Answer - Option 3 : 31

**Given :**

There are 5 girls

Their marks are 20, 27, 37, 32 and 31

**Concept used :**

Median = Middle value of the data set

**Calculations :**

First arrange all values in ascending order

Arranged set in ascending order = 20, 27, 31, 32 and 37

Median = Middle value of the set

⇒ = 31

∴ **The Median of this set is 31**