1.

10 boys are randomly divided into two grops containing 5 boys each. The probability that the two tallest boys are in the different groups is:

Answer»

`10/4`
`4/9`
`5/9`
`1/5`

SOLUTION :Required PROBABILITY =`((lfloor8)/(lfloor4lfloor4)xx1/(lfloor2) xx ""^(2)C_(1))/((lfloor10)/(lfloor5lfloor5)xx1/(lfloor2))=5/9`


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