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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
There are 40 female and 20 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
Solution
Given: Females = 40 (avg = 5.15 ft), Males = 20 (avg = 5.66 ft). Total students = 60.
Weighted average height = $$\frac{40\times 5.15 + 20\times 5.66}{40+20}$$
Compute: $$\frac{206 + 113.2}{60}=\frac{319.2}{60}=5.32$$
Answer: 5.32 feet
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