Out of 90 students in a class, 60% are girls and rest are boys. The average score in English of boys is 30% more than that of girls. If the average score in English of all the students is 56, then what is the same for the girls?

50

Ratio of number of boys to girls is = 2 : 3

So , number of boys = \(\frac{90}{5}\) × 2 = 36  & number of girls = 90 - 36 = 54

Ratio of marks of boys to girls = 13 : 10

ATQ,

36 × 13R + 54 × 10R = 90  × 56

468R + 540R = 5040

R = \(\frac{5040}{1008}\) = 5

Average score of girls = 10R = 10 × 5 = 50