23-05-2014
Mathematics

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How many whole numbers less than 500 can be formed using the digits 1,2, 4, and 5

Respuesta :

23-05-2014

For the first place: 3 possibilities
For the second place: 4 possibilities
For the thirth place: 4 possibilities
For thr fourth place: 4 possibilities

So it is possible to get 3 x 4 x 4 x 4 = 192 numbers

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