The number of ways in which one or more balls can be selected out of 10 whit, 9 green and 7 blue balls, is

Assuming the balls to be identical except for difference in colours, the number of ways in which one or more balls can be selected from 10 white, 9 green and 7 black balls is (1) 880 (2) 629 (3) 630 (4) 879

The number of ways in which 10 balls can be selected from 10 identical green balls, 10 identical blue balls and 9 idenitcal red balls are

Out of 10 white, 8 black and 6 red balls, the number of ways in which one or more balls can be selected is (assuming balls of the same colour are identical)

Find the number of ways in which a selection of 100 balls,can be made out of 100 identical red balls,100 identical blue balls &100 identical white balls.

Out of 10 white,9 black,and 7 red balls,find the number of ways in which selection of one or more balls can be made (balls of the same color are identical).