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How many different numbers of six digits can be formed from the

digits 2, 3, 0, 7, 9, 5 when repetition of digits is not allowed?


There can be 35 different numbers of six digits if the digits are not allowed to repeat...
u see there are six digits out of which one is 0...since zero cant take the place value of lakh...so only 5 numbers can be formed by interchanging its position except for keeping it on the place value of lakh...rest of the 5  numbers can attain any position..
since there r six positions so each number can attain six positions ...therefore..6*5+5 numbers can be formed ...which is equal to 35
0 0 0
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