1. In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the average weight of the boys of the class?
Write Comment
Comments
By: anil on 05 May 2019 02.15 am
Total number of students = 55 and number of girls = 34 => Number of boys in class = 55 - 34 = 21 Average weight of girls = 51 kg => Total weight of girls = $$51 imes 34 = 1734$$ kg Similarly, total weight of full class = $$55.2 imes 55 = 3036$$ kg => Total weight of boys = 3036 - 1734 = 1302 kg $$ herefore$$ Average weight of boys = $$frac{1302}{21} = 62$$ kg => Ans - (A)
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use