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OBJECTIVE RD SHARMA ENGLISH-PERMUTATIONS AND COMBINATIONS-Chapter Test
- If Pm stands for ^m Pm , then prove that: 1+1. P1+2. P2+3. P3++ndotPn=...
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- The number of ways four boys can be seated around a round talble in fo...
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- We are required to form different words with the help of the letters o...
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- A candidate is required to answer 6 out of 10 questions, which are ...
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- The number of ways in which 6 men and 5 women can dine at a round tabl...
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- A students is to answer 10 out of 13 questions in an examminations suc...
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- Write the number of all possible words that can be formed using the ...
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- In a group of boys, two boys are brothers and six more boys are pres...
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- Nishi has 5 coins, each of the different denomination. Find the number...
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- Write the number of ways in which 5 boys and 3 girls can be seated in ...
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- How many different nine-digit numbers can be formed from the digits of...
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- The number of 4 digit even numbers that can be formed using 0, 1, 2, 3...
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- The number of ways in which n ties can be selected from a rack display...
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- There are n-points (ngt2) in each to two parallel lines. Every point o...
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- The maximum number of points of intersection of 8 circles is
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- The maximum number of points of intersection into which 4 circles and ...
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- In a circket charmpionship there are 36 matches. The number of teams i...
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- For 4 le r le n, ((n),(r))+4((n),(r+1))+6((n),(r+2))+4((n),(r+3))+((...
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- The total number of numbers greater than 100 and divisible by 5, that ...
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- Find the number of words that can be made out of the letters of the ...
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