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In a certain class, the ratio of girls to boys is \(5:4.\) How many girls are there?
(1) If four new boys joined the class, the number of boys would increase by \(20\%.\)
(2) If the number of girls increases by \(50\%,\) then after such an increase, the probability that a randomly chosen student would be a boy would be \(\dfrac8{23}.\)
Answer: A
Source: Magoosh
(1) If four new boys joined the class, the number of boys would increase by \(20\%.\)
(2) If the number of girls increases by \(50\%,\) then after such an increase, the probability that a randomly chosen student would be a boy would be \(\dfrac8{23}.\)
Answer: A
Source: Magoosh
