There are four different white balsl and four different black balls. The number of ways that balls can be arranged in a row so that white and black balls are placed alternately is_____

The number of ways in which 17 billiard balls be arranged in a row if 7 of them are black, 6 are red, 4 are white is

There are (n+1) white similar balls and (n+1) black balls of different size. No. of ways the balls can be arranged in a row so that adjacent balls are of different colours is

There are (n+1) white similar balls and (n+1) black balls of different size.No of ways the balls can be arranged in a row so that adjacent balls are of different colours is

There are (n + 1) white and (n + 1) black balls, each set numbered 1 to n + 1. The number of ways in which the balls can be arranged in a row so that adjacent balls are of different colours, is

You are given 8 balls of different colour (black,white ......). The number of ways in which these balls can be arranged in a row so that the two balls of particular colour (say red and white) may never come together is-

You are given 8 balls of different colour (black,white ......). The number of ways in which these balls can be arranged in a row so that the two balls of particular colour (say red and white) may never come together is-

There are n idstinct white and n distinct black ball.If the number of ways of arranging them in a row so that neighbouring balls are of different colors is 1152, then value of n is

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

There are 2 identical white balls,3 identical red balls and 4 green balls of different shades. The number of ways in which they can be arranged in a row so that atleast one ball is separated from the balls of the same colour,is