In how many ways can one select a cricket team of eleven from 17 players in which only 5 players can bowl if each cricket team of 11 must include exactly 4 bowlers?
Given: 17 players in which only 5 players can bowl if each cricket team of 11 must include exactly 4 bowlers
There are 5 players how can bowl, and we require 4 bowlers in a team of 11
∴ No. Of ways in which bowlers can be selected are: 5C4
Now other players left are: 17 – 5(bowlers) = 12
Since we need 11 players in a team and already 4 bowlers are selected, we need to select 7 more players from 12.
∴ No. Of ways we can select these players are: 12C7
∴ Total number of combinations possible are : 5C4 × 12C7
⇒ 5C4 × 12C7 =
⇒5C4 × 12C7 =
∴ Number of ways we can select a team of 11 players where 4 players are bowlers from 17 players are: 3960