Question

3. Question 3.
The ratio of the number of boys to girls in three classes are 7:5, 3:2 and 1:1 respectively. 50% of the boys and 40% of the girls of the first class, 60% of the boys of the second class and 50% of the girls of the third
class join the sports club. There are 51 students in the sports club and 91 students who are not in the sports club from these three classes. If there are 6 more students in the second class than in the third class, what is
the total number of girls in the three classes?
Pick ONE option
A) 62
B) 55
C) 68
D) 54
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Answer 1

Answer:

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