# How many 4-digit positive numbers, whose digits are from the set f1; 2; 3; 4g, are divisible by 4?

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by Alain7

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by Alain7

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The characteristics of numbers divisible by 4 is that their last two digits form a number divisible by 4

so the two digit numbers which are multiples of 4 from set f are 12,24 and 32

since there are always two remaining numbers there are 2x3=6. 6 4-digit positive numbers possible to be divisible by 4

the numbers are 3412, 4312, 1324, 3124, 1432, 4132

so the two digit numbers which are multiples of 4 from set f are 12,24 and 32

since there are always two remaining numbers there are 2x3=6. 6 4-digit positive numbers possible to be divisible by 4

the numbers are 3412, 4312, 1324, 3124, 1432, 4132