Menu Close

Question-20298




Question Number 20298 by mondodotto@gmail.com last updated on 25/Aug/17
Answered by Tinkutara last updated on 25/Aug/17
45 = 36 + 12 + 18 − n(medals in two  categories) + 4  n(medals in two categories) = 25  n(exactly two categories) = 25−3×4  = 13
45=36+12+18n(medalsintwocategories)+4n(medalsintwocategories)=25n(exactlytwocategories)=253×4=13

Leave a Reply

Your email address will not be published. Required fields are marked *