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How many 4 digit number are …

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How many 4 digit number are there with no digit repeated

    • Posted by Kiran Jadhav 5 years, 4 months ago

    CBSE > Class 11 > Mathematics
    • 5 answers

    Shamsher Hassan 5 years, 4 months ago

    no. 0 to 9 total numbers= 10 1000th place can't be filled by 0 bcoz if 0 is used then it will become 3 digit number so 1000th place can only be filled by 1 to 9 No. Of ways of filling 1000th place= 9 No. Of ways of filling unit,10th & 100th place= 9×8×7 Required 4 digit number = 9×9×8×7= 4536

    0Thank You

    Keshav Bindal 5 years, 4 months ago

    =4536

    0Thank You

    Keshav Bindal 5 years, 4 months ago

    9×9×8×7

    0Thank You

    Sanjeev Yadav 5 years, 4 months ago

    There are such 9 numbers

    0Thank You

    Lakshmi Paathak 5 years, 4 months ago

    9*8*7*10

    0Thank You

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