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![[Post New]](/templates/default/images/icon_minipost_new.gif) 22 Mar 2008 13:07:18 IST
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Two persons A and B agree to meet at a place between 11 to 12 noon .The first one
to arrive waits for 20 minutes and the leaves .If the time of their arrival be
independent and at random ,then what is the probability that A and B meet? 
a)1/3 b)2/3 c)4/9 d)5/9
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Caution: Radioactive Hazard |
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22 Mar 2008 13:08:45 IST
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a sum has been posted recently like this only. Graphical method needs to be followed :) Sketch the graph of |x-y| = 20 and find the ratio of the areas to get the prob :)
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22 Mar 2008 13:09:44 IST
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is d ans a?????
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22 Mar 2008 13:10:41 IST
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how can you get 2 answers???
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