First class

The shipment contains 40 items. 36 are first grade, 4 are defective. How many ways can select 5 items, so that it is no more than one defective?

Correct answer:

n =  612612

Step-by-step explanation:

C5(36)=(536)=5!(365)!36!=543213635343332=376992  n1=(536)=376992 C4(36)=(436)=4!(364)!36!=432136353433=58905  n2=4 (436)=4 58905=235620 n=n1+n2=376992+235620=612612

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips for related online calculators
Would you like to compute the count of combinations?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: