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three student a, b, and c want to be in the school cricket. the chances of b selection is twice that of a, the chance of c selection is twice that of b. what ate the probability that 1) c will be school cricket team

Let a be 'x'
According to Question
b=2x
​c=4x (because b=2x & c=2b)
Now,
Total Number Of Outcomes=a+b+c
                                             =x+2x+4x
​                                             =7x
​Favourable outcomes=4x
Probability=Favourable Outcomes/Total Number Of Outcomes
                  =4x/7x
​The answer is 4/7



 
  • 8
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Let a be x
then b will be 2x
​c=4x (c=2b)
total no. of outcomes =a+b+c
                                   =x+2x+4x
                                   =7x
​favourable outcomes=4x
​P(E)=favourable outcomes/total no.of outcomes
4x/7x=4/7
hence the probability is4/7
 
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three student a, b, and c want to be in the school cricket. the chances of b selection is twice that of a, the chance of c selection is twice that of b. what ate the probability that 1) c will be school cricket team
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Let a =x
  • 1
Let a be 'x' According to Question b=2x ​c=4x (because b=2x & c=2b) Now, Total Number Of Outcomes=a+b+c =x+2x+4x ​ =7x ​Favourable outcomes=4x Probability=Favourable Outcomes/Total Number Of Outcomes =4x/7x ​The answer is 4/7
  • -1
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