Question

The number of ways can 10 balls be chosen from an urn containing 10 identical green balls, 5 identical yellow balls and 3 identical blue balls are

Answer 1

According to question

Number of Green Balls = 10
Number of Yellow Balls = 5
Number of Blue Balls = 3

Thus Total Number of Balls In the Urn = 10 +  5 + 3

when we take out 10 balls from the urn

Number of Ways = 18P10
                           = 8*7*6*5*4*3*2*1
                            = 40320