[" 7white balls and "3" black balls are placed in a row at random.The probability that no two black balls are "],[" adjacent is "]

Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals

Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals a. 1//2 b. 7//15 c. 2//15 d. 1/3

Seven white balls and three black balls are randomly arranged in a row. The probability that no two black balls are placed adjacently is

Seven white balls and three black balls are randomly placed in a row. What is the probability that no two black balls are placed adjecently ?

Seven white balls and three black balls are randomly placed in a row. IF the parabability that no two black balls are placed adjacently, equals (7/a), then the value of "a" is

7white balls and 3black balls are kept randomly in order.Find the probability that no two adjacent balls are black.

7 white balls and 3 black balls are kept randomly in order. Find the probability that no two adjacent balls are black.

7 white balls and 3 black balls are kept randomly in order. Find the probability that no two adjacent balls are black.