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Old 07-30-2007   #1
RulerZK
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Default Some probability doubts(questions). I want techniques/strategies/concepts, not just

answers.? 1)given word "EQUATION". Taking all alphabets, no repeatation allowed. Find total no. of arrangements such that no 2 consonants r together.2)5boys, 5girls r there.Find no. of arrangements such thata)no 2girls can sit togetherb)no 2girls and also no 2boys are together.2b) rephrase: neither 2 girls nor 2 boys are togeather.