P is an integer whose digits are zeroes and ones. The sum of the digits of P is 4 and  105< P <107. How many values P can take?
A:60
B:10
C:20
D:30
Answer: D

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    A 5c3 + 6c3 = 30


    Smiley

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    A gfy

    CpjJwWHV   30
    14 years ago
    CpjJwWHV   ca you explain it plz? how 30 came?
    13 years ago
    CpjJwWHV   explain plzz...
    13 years ago

    Smiley