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Out of 5.5 billion bacteria grown for an experiment, 1 in 75
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19 May 2018, 13:57
19 May 2018, 13:57
Expert Reply
00:00
Question Stats:
66% (01:50) correct
33% (01:22) wrong based on 106 sessions
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Out of 5.5 billion bacteria grown for an experiment, 1 in 75 million has a particular mutation. Approximately how many of the bacteria have the mutation?
(A) 7
(B) 73
(C) 733
(D) 7,333
(E) 73,333
(A) 7
(B) 73
(C) 733
(D) 7,333
(E) 73,333
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Re: Out of 5.5 billion bacteria grown for an experiment, 1 in 75
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07 Jul 2018, 17:22
07 Jul 2018, 17:22
3
Expert Reply
sandy wrote:
Out of 5.5 billion bacteria grown for an experiment, 1 in 75 million has a particular mutation. Approximately how many of the bacteria have the mutation?
(A) 7
(B) 73
(C) 733
(D) 7,333
(E) 73,333
(A) 7
(B) 73
(C) 733
(D) 7,333
(E) 73,333
We can create the proportion:
5,500,000,000/n = 75,000,000/1
n = 5,500,000,000/75,000,000 = 5500/75 = about 73
Answer: B
Re: Out of 5.5 billion bacteria grown for an experiment, 1 in 75
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06 Oct 2019, 13:05
06 Oct 2019, 13:05
1
1
1 billion = 1000 million
5.5 billion = 5500 million
So, ans will be 5500/75 = 73.33 or 73 (after rounding off)
5.5 billion = 5500 million
So, ans will be 5500/75 = 73.33 or 73 (after rounding off)
