SOLUTION: the average mark obtained by the student of examination is p. the ratio of boy to girls in the class is 5:1. if the average score of boys is p+1 then find average score of the girl

Question 765446: the average mark obtained by the student of examination is p. the ratio of boy to girls in the class is 5:1. if the average score of boys is p+1 then find average score of the girls

Answer by ramkikk66(644) (Show Source): You can put this solution on YOUR website!
Ratio of boys to girls = 5:1
Assume that the number of girls is x
If there are x girls in the class there are 5*x boys
Total number of students = 6*x
Average score for the whole class of 6*x students = p.
So total marks scored by the class =
(Remember that average for all students = total / number of students)
Similarly, Average score of boys = p+1
So total marks scored by boys =
So, total marks scored only by girls =
Since there are x girls, average score for the girls = total score for girls / number of girls
=
Hope you got it :)

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