Difference between revisions of "1998 PMWC Problems/Problem I1"
(Created page with '== Problem I1 == Calculate: <math>\frac{1*2*3+2*4*6+3*6*9+4*8*12+5*10*15}{1*3*5+2*6*10+3*9*15+4*12*20+5*15*25}</math> == Solution == If you factor the top, you get <math>(1*2*3…') |
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Revision as of 16:36, 8 August 2009
Problem I1
Calculate:
Solution
If you factor the top, you get
If you factor the bottom, you get
Dividing out the common factor, you get