Study the given pie chart and answer the question that follows. Break-up (degree-wise) of the number of students in five schools (A, B, C, D and E) in a city.
If the ratio of the numberof boysto thatofgirls in school B is 7 : 6 and the ratio of the number of boys to that of girls in school is 4 : 5, then what is the ratio of the number of boys in B to that of girls in D?
