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In a backward state, there are …

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In a backward state, there are 729 families having 6children each. If the probability of survival of a girl is 1/3 and that of a boy is 2/3, find the number of families having 2 girls and 4 boys.

    • Posted by Ravi Yadav 7 years, 11 months ago

    CBSE > Class 12 > Mathematics
    • 0 answers
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