The research took 6/12=<<6/12=.5>>.5 years
So it took 2+.5=<<2.5=2.5>>2.5 years for the first artifact
It takes 2.5*3=<<2.5*3=7.5>>7.5 years for the second
So in total it took 2.5+7.5=<<2.5+7.5=10>>10 years to find both
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