Question

Chris has a bag with 4 black socks and 6 red socks (so there are 10 socks in total).

Timothy reaches into the bag and grabs two socks without replacement. Find the
probability that he will not grab two red socks.

Answer 1

78/90

Explanation:

p(BR)=6/10*4/9=24/90

p(RB)=4/10*6/9=24/90

p(BB)=6/10*5/9=30/90

add these together, you get 78/90