#combinatorial mathematics# In how many subsets of 10 members of the set , { 1, 2, ..., 20 } is there no difference between two members of 5 ? a: 2^( 10) b : 3^( 5) c : 2^( 8) d: 10^( 4)


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Question Number 162819 by mnjuly1970 last updated on 01/Jan/22
$#combinatorial mathematics# In how many subsets of 10 members of the set , { 1, 2, ..., 20 } is there no difference between two members of 5 ? a: 2^( 10) b : 3^( 5) c : 2^( 8) d: 10^( 4)$
$You can't use 'macro parameter character #' in math mode$ $I n h o w m a n y s u b s e t s o f 10$ $m e m b e r s o f t h e s e t, {1, 2, . . ., 20}$ $i s t h e r e n o d i f f e r e n c e b e t w e e n$ $t w o m e m b e r s o f 5 ?$ $a : 2^{10} b : 3^{5} c : 2^{8} d : 10^{4}$
Commented by mnjuly1970 last updated on 01/Jan/22

$f o r e x a m p l e$ ${1, 2, 3, 4, 5, 16, 17, 18, 19, 20}$
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