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Difficult Math Question #25 - Sets

Expert replies
by 800guy » Mon Oct 09, 2006 4:33 pm
OA after some people answer...

How many different subsets of the set {10,14,17,24} are there that contain an odd number of elements?

(a) 3 (b) 6 (c) 8 (d) 10 (e) 12
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Source: — Problem Solving |

by gamemaster » Tue Oct 10, 2006 4:13 am
4C1 + 4C3 = 8
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OA

by 800guy » Thu Oct 12, 2006 10:08 am
here's the oa:

8 is the answer. The different subsets are

10,
14,
17,
24,
10, 14, 17

14 17 24

17 24 10

24 10 14
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by anandsebastin » Wed Oct 18, 2006 6:40 pm
C

subsets with one element - 4
subsets with 3 elements - {10,14,17}, {10, 17,24}, {10,14,24}, {14,17,24} = 4. Total = 8
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