Answer:
25/49
Step-by-step explanation:
we will use AND OR rule here
same color in both cases means
(red marble AND red marble) OR (blue marble AND blue marble)
AND means Multiplication
OR means addition
probability of getting red marble = 3/7
probability of getting blue marble = 4/7
(3/7×3/7)+(4/7×4/7) = 25/49
HOPE IT HELPS ;)
