A box contains 3 black and 4 red balls. Another box contains 2 black and 3 red balls. Balls are taken from these boxes, mixed and kept in a third box. Now two balls are chosen from the third box at random. What is the probability that one of them is black and the other red?

A box contains 3 black and 4 red balls. Another box contains 2 black a

1.	A box contains 3 black and 4 red balls. Another box contains 2 black and 3 red balls. Balls are taken from these boxes, mixed and kept in a third box. Now two balls are chosen from the third box at random. What is the probability that one of them is black and the other red?
A.	\(\frac{5}{{48}}\)
B.	\(\frac{35}{{66}}\)
C.	\(\frac{35}{{144}}\)
D.	\(\frac{5}{{66}}\)
Answer» C. \(\frac{35}{{144}}\)

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A box contains 3 black and 4 red balls. Another box contains 2 black and 3 red balls. Balls are taken from these boxes, mixed and kept in a third box. Now two balls are chosen from the third box at random. What is the probability that one of them is black and the other red?

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