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the results of 11 chess matches (as win ...

the results of 11 chess matches (as win , lose or draw ) are to be forecast . Out of all posible forecasts, the number of ways in which 8 correct and 3 incorrect results can be forecast is

A

`""^(11)C_(8)xx8`

B

`2^(3)xx""^(11)C_(3)`

C

1320

D

8! `xx` 3!

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A, B, C
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section C Objective type questions (One option is correct )
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  2. the results of 11 chess matches (as win , lose or draw ) are to be fo...

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  3. A student has to answer 10 out of 13 questions in an examination. T...

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  4. Let N denote the number of ways in which n boys can be arranged in a l...

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  5. The kindergarten teacher has 25 kid in her class. She takes 5 of them ...

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  6. The number of ways in which 20 girls be seated round a table if there ...

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  7. The number of non-negative integral solution x1 + x2 + x3 + x4 <=n (wh...

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  8. If N is the number of positive integral solutions of x1x2x3x4 = 770, t...

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  9. There are n white and n black balls marked 1, 2, 3,…..,n. The number o...

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  10. There are 15 bulbs in a room. Each one of them can be operated indepen...

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  11. The number of ways in which 5 distinct toys can be distributed among 8...

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  12. The number of six digit numbers that can be formed from the digits 1,2...

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  13. Find the number of integers which lie between 1 and 10^6 and which hav...

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  14. sum(r=0)^(m) ""^(n+r)C(n) is equal to

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  15. Between two junction stations A and B there are 12 intermediate statio...

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  16. If m parallel lines in a plane are intersected by a family of n par...

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  17. There are n straight lines in a plane in which no two are parallel and...

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