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Of the 17 articles , 12 are alike and t...

Of the 17 articles , 12 are alike and the remaining 5 are different . Find the numbers of combinations , if 13 articles are taken at a time .

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CHHAYA PUBLICATION-PERMUTATION AND COMBINATION -EXERCISE 7B ( Long Answer Type Questions )
  1. In how many ways can a team of 11 cricketers be chosen from 9 batsmen ...

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  2. The Indian Cricket Eleven is to be selected out of fifteen players , f...

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  3. How many combinations can be formed of eight counters marked 1,2,3,4,5...

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  4. Find the number of permutations of the letters of the words FORECAST a...

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  5. In how many ways can the crew of an eight - oared boat be arranged if ...

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  6. Of the 17 articles , 12 are alike and the remaining 5 are different ...

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  7. Out of 3n given things 2n are alike and the rest are different Show th...

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  8. Show that there are 136 ways of selecting 4 letters from the word EXAM...

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  9. Find the total number of ways of selecting 5 letters from the word IN...

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  10. Find the number of combinations in the letters of the word STATISTICS ...

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  11. Find the number of permutations in the letters of the word PROPORTION ...

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  12. How many different numbers of 4 digits can be formed with the digits ...

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  13. From 4 apples , 5 oranges and 3 mangoes , how many selections of fruit...

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  14. In how many ways can one or more fruits be selected from 4 apples ,5 o...

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  15. Find the total number of combinations taking at least one green ball a...

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  16. How many different algebraic quantities can be formed by combining a,b...

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  17. There are n points in space , no four of which are in the same plane w...

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  18. n(1),n(2)andn(3) points are given on the sides BC ,CA and AB respecti...

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  19. A man has 7 relatives ,4 of them are ladies and 3 are gentlemen , his ...

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  20. Eighteen guests have to be seated , half on each side of a ling table ...

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