This can be solved with a Venn diagram, but we also have a formula:Yolanda’s Yummy Ice Cream Shoppe was giving away samples of new flavors:
yum yum mint, choco chips, and nutty nosh.
Forty-five people had mint, 56 had nosh, and 63 had chips.
Eighteen people sampled both mint and nosh, 26 tasted nosh and chips,
and 20 had mint and chips. .Eight very brave people sampled all three.
How many people tried a new flavor?
n( M U N U C) .= .n(M) + n(N) + n(C) - n(M ∩ N) - n(N ∩ C) - n(M ∩ C) + n(M ∩ N ∩ C)
So we have: .n(M U N U C) .= .45 + 56 + 63 - 18 - 26 - 20 + 8 .= .108