Subject
Quantitative Aptitude
Topic
Set
The average height of 13 girls in a class is 144(8/13)cm. The average height of 11 boys in a class is 169(5/11)cm. There are only 24 student in the class. What is the overall average height (in cm) of all the students together in the class?
The average height of 13 girls in a class is 144(8/13)cm. The average height of 11 boys in a class is 169(5/11)cm. There are only 24 student in the class. What is the overall average height (in cm) of all the students together in the class?
ক)
156খ)
159গ)
166ঘ)
178Explanation
total height of girls = 13 x 144(8/13) = 1880 cm total height of boys = 11 x 69(5/11) = 1864cm Average height of all the students, = (1880+1864)/24 = 156cmRelated questions
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