Question

from 4 officers and 8 jawans , a committee of 6 is to be chosen to include exactly 1 officer. the number of such committee is ​

Answer 1

Step-by-step explanation:

committee of exactly 1 officer and 5 jawan is

4c1× 8c5 =4×8c3=4×8×7×6/3×2=7×8×4=224