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. 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 placed in a row. IF the parabability that no two black balls are placed adjacently, equals (7/a), then the value of "a" 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 ?

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

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.