Question

Among 90 pieces of mail delivered to an office, 50 are addressed to the accounting dept. and 40 are addressed to marketing dept. If two of these pieces of mail are delivered to the manager's office by mistake and selection is random.what are the probability that
a.both of them has to be delivered to accounting dept
b.​both of them has to be delivered to marketing dept
c.one have to be delivered to accounting and one to marketing dept​

Answer 1

Step-by-step explanation:

c is the correct option

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