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Problem Solving (PS) | Re: A deck of cards contains 6 cards numbered from 1, 2, 3, 4, 5, and to 6

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Bunuel wrote:

A deck of cards contains 6 cards numbered from 1, 2, 3, 4, 5, and to 6. If three cards are randomly selected from the deck without replacement, what is the probability that the numbers on the cards are consecutive integers in increasing order?

A. 1/60
B. 1/30
C. 1/20
D. 1/6
E.1/3


total ways to select 3 cards from 6 ; 6*5*4 ; 120 ways
and possible set of consective cards ; (1,2,3) ; ( 2,3,4); ( 3,4,5); ( 4,5,6) ; 4
so P = 4/120 ; 1/30
OPTION B
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