Question

GE
Read the following Satement and Choose the correct optio
Shipment, there are 40 floppy disks of which 5 are defective. Determine
In how many ways we can select 5 floppy disks containing at le
floppy disks?
OPTIONS
611632
611626
W
611615
611625
SKIP
o
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Answer 1

Answer:

answer discs xixjsjbebxud

Step-by-step explanation:

sbdbdbxusbbejdidiej3

Answer 2

Answer:

611625 is the right answer.

Step-by-step explanation:

• Picking 5 floppy discs from a cargo of 40 presents a challenge because 5 of them are flawed.
• We need to figure out how many different methods there are to choose five floppy drives with at least one flaw.
• We can use the idea of combinations, which is a method of tallying the number of methods to choose a collection of items from a bigger set, without taking into account the sequence in which they are chosen, to answer this issue.
• nCr = n! / (r! * (n-r)!), where n! indicates the factorial of n, which is the product of all positive numbers up to n, is the formula for the number of combinations of n items selected r at a time. 333376.
• We can deduct the overall number of ways to select any 5 floppy discs from the number of ways to select 5 good floppy discs in order to determine the number of ways to select 5 floppy discs that contain at least one defective floppy disc.
• The overall number of methods to choose any five floppies from a pool of 40 is given by 40C5 = 40! / (5! * 35! ), which is 658008.
• There are 324632 different methods to choose five acceptable floppy discs, or 35C5 = 35! / (5! * 30!).
• This means that there are 333376 different methods to choose 5 floppy discs, which must each contain at least one faulty floppy disc (658008 - 324632).
• Therefore, 611625 is the right answer.

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