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Carbon dioxide comprises, on average, about 397 parts per million of the Earth's atmosphere, on a molecular basis. In an even sample of the Earth's atmosphere consisting of 4 billion molecules, approximately how many of those molecules would be expected to be carbon dioxide? (1 billion = 1,000,000,000)
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
21 Aug 2019, 02:22
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Bunuel
Carbon dioxide comprises, on average, about 397 parts per million of the Earth's atmosphere, on a molecular basis. In an even sample of the Earth's atmosphere consisting of 4 billion molecules, approximately how many of those molecules would be expected to be carbon dioxide? (1 billion = 1,000,000,000)
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
Similar question to practice: https://gmatclub.com/forum/the-concentr ... 23165.html
21 Aug 2019, 02:39
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Bunuel
Carbon dioxide comprises, on average, about 397 parts per million of the Earth's atmosphere, on a molecular basis. In an even sample of the Earth's atmosphere consisting of 4 billion molecules, approximately how many of those molecules would be expected to be carbon dioxide? (1 billion = 1,000,000,000)
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
A. 160,000
B. 1,000,000
C. 1,600,000
D. 10,000,000
E. 16,000,000
In 1000000 molecules of atmospher, 397 part is carbon dioxide.
So, in 4 billion molecules, carbon dioxide = (397/10^6)4*10^9 ~ 1600*10^3 = 1600000
