MichealZalusky705 MichealZalusky705

06-08-2014
Mathematics

Answered

How many subsets of four elements each exist in a set of seven elements?

Answer :

06-08-2014

The answer is C7,4 = 7x6x5x4/4! = 7x5 = 35

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14-05-2019

Answer:

C(7, 4) = 35

Step-by-step explanation:

This is called combination.

The total number of elements (n) = 7

The number elements in a subset(r) = 4

The number of subsets = C(7, 4)

= 7!/4!(7 -4)!

= 7!/4!3! [7! = 5040, 4! = 24, 3! = 6]

= 5040 / (24*6)

= 5040/144

= 35 ways

Answer is C(7, 4) = 35

Hope this will helpful.

Thank you.

Answer Link

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