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RD SHARMA ENGLISH-COMBINATIONS-All Questions
- There are 10 persons named P1, P2, P3 ..., P10. Out of 10 persons, 5 p...
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- Find the number of permutations of n distinct things taken r together,...
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- How many words, with or without meaning, each of 3 vowels and 2 con...
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- The number of permutations of n things taken r at a time if 3 particul...
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- How many words, with or without meaning can be made from the letter...
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- If C(35, n+7)= C(35, 4n-2) then all the values of n are
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- Write the number of diagonals of an n-sided polygon.
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- Write the expression \ ^n C(r+1)+\ ^n C(r-1)+2xx\ ^n Cr in the simples...
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- There are 3 letters and 3 directed envelopes. Write the number of ways...
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- Write the maximum number of points of intersection of 8 straight lines...
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- The number of parallelograms that can be formed from a set of four par...
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- The number of ways in which 12 students can be equally divided into th...
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- Write the total number of words formed by 2 vowels and 3 consonants ...
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- If \ ^20 Cr=\ ^20 C(r-10) ,\ t h e n\ \ ^18 Cr is equal to 'a. 4896 ...
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- If \ ^(20)Cr=\ ^(20)C(r+4),\ t h e n\ \ ^r C3 is equal to a. 54 b. 56 ...
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- If \ ^(15)C(3r)=\ \ ^(15)C(r+3)\ then\ r is equal to a. 5 b. 4 c. 3 d....
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- If \ ^(20)C(r+1)=\ \ ^(20)C(r-1),\ t h e n\ r is equal to a. 10 b. 11 ...
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- If C(n , 12)=C(n ,8),\ t h e n\ C(22 , n) is equal to a. 132 b. 210 c....
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- If \ ^m C1=\ \ ^n C2 then which is correct a. 2m=n b. 2m=n(n+1) c. 2m...
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- If \ ^n C(12)=\ \ ^n C8 then = a. 20 b. 12 c. 6 d. 30
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