7.A jar contains only red marbles and green marbles. If a marble is selected at random from the jar, the probability that a red marble will be selected is 2/3. If there are 36 green marbles in the jar, how many red marbles are there in the jar?
Answer Choices
(A) 18
(B) 24
(C) 54
(D) 72
(E) 108
Explanation
以上就是這8道SAT數學練習題的全部內容,很簡單。但是大家一定要記得,不要拿這些SAT數學練習題的難度和真正的SAT數學考試的難度相比,因為SAT數學考試的難度比這個要高,大家從中需要了解的是SAT數學考試的出題方式和相關詞匯。