The average pass percentage of girls in class X examination in a school is 85% and that of boys is 83%. The average pass percentage of all boys and girls in class X of that school is 83.7%. Find the percentage of the number of girls in class X of that school.
Answer & explanation
Correct answer: option 1
By using Allegation Method ,
Percentage of Girls in class X = \(\frac{7}{20}\) × 100
= 35%