The average score of the girls in class X examination in a school is 73 and that boys is 71. The average score in class X of that school is 71.8. Find the percentage of girls and boys in class X of the school.
(a) 34% (b) 39% (c) 40% (d) 41%
Question ID - 51422 | SaraNextGen Top Answer The average score of the girls in class X examination in a school is 73 and that boys is 71. The average score in class X of that school is 71.8. Find the percentage of girls and boys in class X of the school.
(a) 34% (b) 39% (c) 40% (d) 41%
The average score of the girls in class X examination in a school is 73 and that boys is 71. The average score in class X of that school is 71.8. Find the percentage of girls and boys in class X of the school.
(a) 34% (b) 39% (c) 40% (d) 41%
1 Answer
127 votes
Answer Key / Explanation : (c) -
Let the number of boys in the class be 
and the number of girls be 
Then, 
Percentage of boys = 
= 
Percentage of girls = 
% = 40%.
127 votes
Answer Link
127