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 Community Discussion Question:
p&c
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![[Post New]](/templates/default/images/icon_minipost_new.gif) 14 Mar 2007 17:03:00 IST
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Among 20 members of a cricket club, there are two wicket-keepers and 5 bowlers. In how many ways can eleven be chosen so as to include only one of the wicket-keepers and at least three bowlers?
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14 Mar 2007 17:08:20 IST
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there wil be three cases
when there are three bowlers .- 20C16 + 2C1 + 5C3
when there are 4 bowlers - 20C15 + 2C1 + 5C4
when there are 5 bowlers - 20C14 + 2C1 + 5C5
a add them to get ans . if u find my nas. satisfactory plz. rate it
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adversities cause some men to break other to break records............i m of the other type....... :-) |
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17 Mar 2007 11:08:28 IST
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there will be three cases
when there are three bowlers .- 13C7 X 2C1 X 5C3
when there are 4 bowlers - 13C6 X 2C1 X 5C4
when there are 5 bowlers - 13C5 X 2C1 X 5C5
NOW ADD ALL OF THEM
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dont worry .
be happy and positive
nd nvr stop bcz life cant wait.
nd watever happens keep smiling bcz log haste huye btr lagte hain.try to fight wid d situation
nd tc of urself bcz u r spl to someone out dere |
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18 Mar 2007 02:23:37 IST
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aanchal is quite rght bt nt exactly
the rght ans is
when there are three bowlers :- 13C7 X 2C1 X 5C3
when there are four bowlers :- 13C6 X 2C1 X 5C4
when there are five bowlers :- 13C5 X 2C1 X 5C5
nw add all these cases nd u wl surely get the rght answer
thanku...........
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nobody is perfect......i m nobody.............. |
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