The ratio of boys to girls in class A is 3 to 4 . The ratio of boys to girls in class B is 4 to 5 . If the two classes were combined, the ratio of boys to girls in class B is two less than the number of girls in class A. How many girls are in class A?

A 87
B 11
C 12
D 15

Correct Answer: 11

Bissoy MCQ
#উচ্চতর গণিত #সমতলে বস্তুকণার গতি (Motion of particles in a plane) #G ইউনিট #জাহাঙ্গীরনগর বিশ্ববিদ্যালয়

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