2021 maths1a intermediate question paper ts
Probability
Probability Types of probabilities Conditional probability P(A/B)=p(A+B/A) Multiplicative probability Exhastive probability Arranging thing is permutation.
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If the letter of word VICTORY are arranged in order of a dictionary.then rank of the word victory
Chapter: permutation Topic :Rank of the word Question If the letter of word VICTORY are arranged in order of a dictionary.then rank of the word victory. Solutions Step: Arrange given letter in alphabetical order CIORTVY Now start counting from c untill we get starting letter of word VICTORY. Number of words starting from C is 6! Number of words starting from I is 6! Number of words starting from O is 6! Number of words starting from R is 6! Number of words starting from T is 6! Now,we got V the starting letter of VICTORY now,let search for second word again from start of alphabet order CIORTVY .But now ignore V or remove it as we have found it. Hence we have the alphabet order or dictionary order as CIORTY Number of words starting from C is 5! Now, we found the second letter of VICTORY too that is I.Now,dictionary order is CORVY.again start from start of dictionary order CORVY. Now we have 3rd letter of VICTORY.so need to count.so dictionary order is now ORVY.again start count fro...
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