Study the given histogram and answer the question that follows.

The histogram represents the percentage of marks obtained by a number of students of a school in the class X Board Examination in 2018 . The total number of students = 250.

The number of students who have obtained less than 50% marks is approximately what percentage less than the number of students who have obtained 90% marks and above?

60%

Number of students obtained less than 50% marks = 10

Number of students obtained  90% marks and above = 25

Required percentage = \(\frac{15}{25}\) ×  100 = 60%