There are two boxes A and B. Box A has three red and four blue balls. Box B has five red and two blue balls. Anya
draws a ball from each bag randomly. What is the probability that both balls are red?
Op 1: 4/7
Op 2: 8/49
Op 3: 7/8
Op 4: 15/49

Question

There are two boxes A and B. Box A has three red and four blue balls. Box B has five red and two blue balls. Anya 
draws a ball from each bag randomly. What is the probability that both balls are red?
Op 1: 4/7
Op 2: 8/49
Op 3: 7/8 
Op 4: 15/49

jojo4eva · Answer

OP 2

anonymous · Answer

@jojo4eva  Can u explain how?

jojo4eva · Answer

not really lol im not even sure myself i kno someone who can help. @phi can you help her with this please? SOrry not ttrying to spam u

phi · Answer

First, what is the probability of drawing a red ball from box A ?

phi · Answer

Prob of a red ball from box A is # of red balls divided by total number
Next, find the prob of a red from box B

Finally, multiply the 2 probabilities.