To Fill 8 Vacancies There Are 15 Candidates Of Which 5 Are From St. I

1.	To Fill 8 Vacancies There Are 15 Candidates Of Which 5 Are From St. If 3 Of The Vacancies Are Reserved For St Candidates While The Rest Are Open To All, Find The Number Of Ways In Which The Selection Can Be Done ?
Answer» ST CANDIDATES vacancies can be filled by 5C3 ways = 10 Remaining vacancies are 5 that are to be filled by 12 =&GT;12C5= (12x11x10x9x8)/(5x4x3x2x1) = 792 Total number of filling the vacancies = 10 x 792 = 7920. ST candidates vacancies can be filled by 5C3 ways = 10 Remaining vacancies are 5 that are to be filled by 12 =>12C5= (12x11x10x9x8)/(5x4x3x2x1) = 792 Total number of filling the vacancies = 10 x 792 = 7920.

To Fill 8 Vacancies There Are 15 Candidates Of Which 5 Are From St. If 3 Of The Vacancies Are Reserved For St Candidates While The Rest Are Open To All, Find The Number Of Ways In Which The Selection Can Be Done ?

Answer»

ST CANDIDATES vacancies can be filled by 5C3 ways = 10

Remaining vacancies are 5 that are to be filled by 12

=&GT;12C5= (12x11x10x9x8)/(5x4x3x2x1) = 792

Total number of filling the vacancies = 10 x 792 = 7920.

ST candidates vacancies can be filled by 5C3 ways = 10

Remaining vacancies are 5 that are to be filled by 12

=>12C5= (12x11x10x9x8)/(5x4x3x2x1) = 792

Total number of filling the vacancies = 10 x 792 = 7920.