GMAT Practice Question Set #25 (Question 73-75)

Problem Solving Question #74: Sequencing the Human Genome (different num of computers)  
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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?










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