SAGAR SINGH - IIT DELHI
Last Activity: 14 Years ago
Dear swetha,
(x,y) belongs to a set of {1,2,3,....,100}
for a number divisible by 3 the sum of the digits has to be divisible by 3. Use this trick and check whether you are getting the required probability as 3/91 or not...
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Sagar Singh
B.Tech, IIT Delhi