The average score of a class of boys and the girls in an examination is A
The ratio of boys and girls in the class 3 : 1. If the average score of the boys of A+1
the average score of the girls is
(a) A
1 (b) A
3 (c) A+1 (d) A+3
The ratio of boys and girls in the class 3 : 1. If the average score of the boys of A+1 the average score of the girls is 1 (b) A 3 (c) A+1 (d) A+3Question ID - 50921 | SaraNextGen Top Answer The average score of a class of boys and the girls in an examination is A The ratio of boys and girls in the class 3 : 1. If the average score of the boys of A+1 the average score of the girls is
(a) A 1 (b) A 3 (c) A+1 (d) A+3
The average score of a class of boys and the girls in an examination is A The ratio of boys and girls in the class 3 : 1. If the average score of the boys of A+1 the average score of the girls is
(a) A 1 (b) A 3 (c) A+1 (d) A+3
1 Answer
127 votes
Answer Key / Explanation : (b) -
Let the number of boys and girls in the class be 
and 
respectively.
Let the average score of the girls be 
Then, 
127 votes
Answer Link
127