# A box contains 3 red and 4 blue marbles. Two marbles are drawn without replacement. What is the probability that the second marble is red if it is known the first marblel is red?

Category: QuestionsA box contains 3 red and 4 blue marbles. Two marbles are drawn without replacement. What is the probability that the second marble is red if it is known the first marblel is red?
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A box contains 3 red and 4 blue marbles. Two marbles are drawn without replacement. What is the probability that the second marble is red if it is known the first marblel is red?

(a) $$\frac {3}{7}$$

(b) $$\frac {4}{7}$$

(c) $$\frac {1}{3}$$

(d) $$\frac {1}{7}$$

I got this question in a national level competition.

My doubt is from Multiplication Theorem on Probability topic in division Probability of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options
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