human
Tom goes to a combined undergrad and Ph.D. program. It takes 3 years to finish the BS and 5 years to finish the Ph.D. Tom finishes it in 3/4ths the time. How long does it take for him to finish?
assistant
How long does the program normally take? ** The program normally takes 3+5=<<3+5=8>>8 years
How long does it take him to finish? ** So he manages to finish in 8*3/4=<<8*3/4=6>>6 years
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