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OpenStudy (anonymous):
how many three digit positive integers are there such that the three digits are 3 4 and 8
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OpenStudy (anonymous):
3*2*1=6 |dw:1389977563991:dw|
OpenStudy (anonymous):
can u explain me
OpenStudy (anonymous):
hello
OpenStudy (anonymous):
hundredth place can be filled by 3 numbers i.e.,3,4,8 After hundredth place is ffilled we are left only 2 numbers, so tenth place can be filled by 2 ways After two numbers are filled we are left with only one number ,so unit place can be filled in 1 way only.
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