In this task, you need to provide the correct option for a given problem on probability from the provided options.
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Question: Problem: two cards are drawn together from a pack of 52 cards the probability that one is the spade and one is a heart is ? 
Options: a ) 85 / 852 , b ) 45 / 69 , c ) 18 / 456 , d ) 13 / 102 , e ) 23 / 125

Answer: d


Question: Problem: three 7 faced dice are thrown together . the probability that all the three show the same number on them is ? 
Options: a ) 1 / 38 , b ) 1 / 49 , c ) 1 / 39 , d ) 1 / 42 , e ) 1 / 29

Answer: b


Question: Problem: there are 10 pairs of socks and 2 socks are worn from that such that the pair of socks worn are not of the same pair . what is the number of pair that can be formed . 
Options: a ) 90 , b ) 85 , c ) 75 , d ) 95 , e ) 82

Answer:
a