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CENGAGE ENGLISH-PERMUTATIONS AND COMBINATIONS-All Questions
- 10 different letters of an alphabet are given. Words with 5 letters ar...
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- If ^n Cr=84 ,and ^n C(r-1)=36 , and r = 1 , then find the value of ndo...
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- Eight chairs are numbered 1 to 8. Two women and three men wish to oc...
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- The value of expression .^47 C4+sum(j=1)^5.^(52-j)C3 is equal to a.....
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- The number of n digit numbers which consists of the digit 1 and 2 on...
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- If ^n C3+^n C4>^(n+1)C3 , then a. n >6 b. n >7 c. n<6 ...
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- The value of sum(r=0)^(n-1)^n Cr//(^n Cr+^n C(r+1)) equals a. n+1 ...
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- A bag contains four one-rupee coins, two twenty-five paisa coins, a...
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- There are four letters and four directed envelopes. The number of w...
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- Kanchan has 10 friends among whom two are married to each other. Sh...
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- Number of ways in which three numbers in A.P. can be selected from ...
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- The total number of positive integral solution of 15 < x1+x2+x3 lt= 20...
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- A train time table must be compiled for various days of the week, so t...
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- The streets of a city are arranged like the like the lines of a che...
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- A batsman scores exactly a century by hitting fours and sixes in 20...
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- In how many ways can 2t+1 identical balls be placed in three distinct ...
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- Sohan has x children by his first wife. Geeta has (x+1) children by he...
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- let a1,a2,...an be in A.P. wth common difference pi/6. if seca1seca2+s...
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- Six apples and six mangoes are to be distributed among ten boys so ...
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- Find the number of ways in which we can choose 3 squares on a chess...
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