A committee of 4 people is to be appointed from 4 officers of the production department ,3 officers of the purchase department ,3 officers of the sales department and two chartered accountants.how many ways this committee can be formed :1)by selecting one person from each category . 2)by selecting two from production department and one person from each purchase and sales department?
1 . NO OF WAYS OF SELECTING ONE PERSON FROM EACH CATEGORY = 4C1 * 3C1 * 3C1 * 2C1
= 4*3*3*2
= 72 WAYS
2. NO.OF WAYS = 4C2 * 3C1 * 3C1
= 6*3*3
= 54 WAYS