Answered

A bag contains 7 white balls and 5 black balls. 5 balls are drawn at random. In how many ways can the 5 balls be drawn from 12 balls? If the color is not considered? SHOW YOUR SOLUTION

Sagot :

Kuleggsviz

C(n,r) = C(12,5)

= 12!/(5!(12−5)!)

= 12!/(5!×7!)

= 792 ways