In an examination, the average girls of a class The score is 73 and the average score for boys is Is 71. If the average score of the whole class is 71.8 If we find the percentage of girls?

The average score of girls in class X examination in a school is 73 and that of boys is 71. The average score in class X of that school is 71.8. Find the percentage of the number of girls and boys in class X of the school.

The average score of girls in class examination in a school is 67 and that of boys is 63. The average score of whole class is 64.5. If the percentage of girls in class is x, then the value of x is__

The average score of a class of boys and girls in an examination is A .The ratio of boys and girls in the class is 3:1. If the average score of the boys is A+1, the average score of the girls is A-1 (b) A-3 (c) A+1 (d) A+3

The average score of boys in an examination of a school is 71 and that of the girls is 73. The average score of the whole school in that examination is 71.8. Find the ratio of the number of boys to the number of girls that appeared in the examination.

Three maths classes : X, Y and Z, take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and average score of class Y and Z is 81. What is the average score of classes X , Y, Z