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# Recently, scientists were able to sequence an individual's humane geno

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Math Expert
Joined: 02 Sep 2009
Posts: 60647
Recently, scientists were able to sequence an individual's humane geno  [#permalink]

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30 May 2016, 13:22
00:00

Difficulty:

65% (hard)

Question Stats:

49% (01:47) correct 51% (01:42) wrong based on 78 sessions

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Recently, scientists were able to sequence an individual's humane genome in just 4 weeks using a super fast modern computer. A computer manufactured just 2 years earlier would have taken 24 weeks to do the same amount of work.

For more targeted treatment of his cancer, Steve needs his human genome to be sequenced as soon as possible and scientists plan to use 1 new computer and two 2 year-old computers to work together. Assuming the computers can tackle discrete components of the genome sequencing process, how many days should the scientists wait before seeing the data results?

(A) 3
(B) 12
(C) 16
(D) 18
(E) 21

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Marshall & McDonough Moderator
Joined: 13 Apr 2015
Posts: 1684
Location: India
Re: Recently, scientists were able to sequence an individual's humane geno  [#permalink]

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01 Jun 2016, 19:13
Rate of sequencing an individuals genome using super fast computer = 1/4

Rate of sequencing an individuals genome using old computer = 1/24

Rate of sequencing using 1 super fast and 2 old computer = 1/4 + 2/24 = 8/24 = 1/3

Time taken = 3 weeks = 21 days

Re: Recently, scientists were able to sequence an individual's humane geno   [#permalink] 01 Jun 2016, 19:13
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