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Posts: 16,394
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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Question Stats:
66% (00:26) correct
33% (01:10) wrong based on 3 sessions
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If the jar contains 1200 marbles and there are twice as many orange marbles as there are green, how many green marbles are there?
A. 50
B. 100
C. 150
D. 200
E. 300
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Posts: 16,394
OE
Since the red, blue, and yellow marbles constitute 75% of the total (30% + 25% + 20%), the orange and green ones combined account for 25% of the total: 25% of 1200 = 300. Then, since the ratio of orange marbles to green ones is 2:1, there are 200 orange marbles and 100 green ones.
Anwer: B
Since the red, blue, and yellow marbles constitute 75% of the total (30% + 25% + 20%), the orange and green ones combined account for 25% of the total: 25% of 1200 = 300. Then, since the ratio of orange marbles to green ones is 2:1, there are 200 orange marbles and 100 green ones.
Anwer: B
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