how many 3 digit no can be formed from 0,1,3,5,6 if repeatatios is not allowed?
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6
3 digit no. formed from 0,1,3,5,6 are following as:-
103, 130, 310,301, 105,150, 501, 510, 610, 601, 106, 135, 136, 153, 513, 315, 653, 635, 356, etc. there are many more no. that can be formed from these no..
103, 130, 310,301, 105,150, 501, 510, 610, 601, 106, 135, 136, 153, 513, 315, 653, 635, 356, etc. there are many more no. that can be formed from these no..
Answered by
4
Number of choices for 1st digit = 4 (excluding zero)
Number of choices for 2nd digit = 4 (any digit not taken up by the first digit)
Number of choices for 3rd digit = 3 (any digit not taken up by the first two digits)
Total number of possible combination = 4 x 4 x 3 = 48
Answer: There are a possible of 48 3-digit numbers.
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