The subset of {2,3,6} are

Question

The subset of {2,3,6} are {2},{3},{6},{2,3},{26},{3,6},{2,3,6},how many subsets does {2, 4, 6, 8} have?

asdert · Answer

4C1 + 4C2 + 4C3 + 4C4 = 4 + 6 + 4 + 1 = 17

amitdgr · Answer

I actually started counting by enumerating. I agree your solution is a better approach

spriya · Answer

Good One !!!
I never get permutations and combinations and probabilty thanks for claryfying

rino · Answer

(4c1)+(4c2)+(4c3)+(4c4)= 4+6+4+1=15

nikhiljain05 · Answer

the calculations show 15 as the answer 
what are the remaining 2 values for

icandy · Answer

I believe it was a mistake in addition. I did not notice it previously as I looked at the logic and I agreed with it.

If the subsets were not enumerated, we should have considered the null set, which is also a subset of any set.

Greenberg · Answer

In Set Theory for every set {a1,a2... an} there are 2^n of subsets (power set).

In Set Theory {empty set} is also considerd a subset of {a1,a2.... an}

since you aren't being asked about {empty set} and n=4 then:

2^4-1 = 15

the answer is 15

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