bailey decorates dance hall with balloons.A box of balloons contains 20 red,18blue,and 12 white balloons.bailey randomely choose a balloon without looking at it.what is probability that he choose ablue or white

Question

bailey decorates dance hall with balloons.A box of balloons contains 20 red,18blue,and 12 white balloons.bailey randomely choose  a balloon without looking at it.what is probability that he choose  ablue or white

mathmate · Answer

A blue or white means not red.
Total number of balloons = 20+18+12=50
P(red)=20/50=0.4
P(~red)=1-0.4=0.6
Alternatively,
P(blue or white)=P(blue)+P(white)=18/50+12/50=0.6

ksaimouli · Answer

how did u get .1-.4