NIMCET 2025 Paper

Section: Mathematics

Question : 5 of 120

Marks: +1, -0

There are

4 0

female and

2 0

male students in a class. If the average heights of female and male students are 5.15 feet and 5.66 feet, respectively, then the average height (in feet) of all the students in the class equals:

5.490
5.175
5.405
5.320

Validate

Solution:

Number of female students

=40

Number of male students

=20

Average height of females

=5.15 ft

Average height of males

=5.66 ft

Total height of female students:

40 × 5.15=206 ft

Total height of male students:

20 × 5.66=113.2 ft

Total height of all students:

206+113.2=319.2 ft

Average height of all 60 students:

\;{319.2}/{60}=5.32 ft

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