a) Consider the digits : 0, 2, 4, 5, 6 , 7. i) How many 4 digits numbers can be formed if repetition is not allowed and not leading with a zero. ii) If the numbers is allowed to repeat, find the possible arrangement of the numbers are divisible by 5 between 300 000 to 700 000.

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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a) Consider the digits : 0, 2, 4, 5, 6 , 7.
i)
How many 4 digits numbers can be formed if repetition is not allowed and not leading with
a zero.
ii)
If the numbers is allowed to repeat, find the possible arrangement of the numbers are
divisible by 5 between 300 000 to 700 000.
Transcribed Image Text:a) Consider the digits : 0, 2, 4, 5, 6 , 7. i) How many 4 digits numbers can be formed if repetition is not allowed and not leading with a zero. ii) If the numbers is allowed to repeat, find the possible arrangement of the numbers are divisible by 5 between 300 000 to 700 000.
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