Question

Write all 3-digit numbers formed from 5,3,4 if the digits can be repeated

Answer 1

Step-by-step explanation:

For the first digit we have 5 numbers to choose from, 2,3, 6, 7 and 9. So we have 5 ways to pick the first number. Once the first number is picked we have 4 numbers remaining to pick the second number. So we have 5x4 =20 possibilities to create the required three digits numbers.

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Answer 2

543, 534, 435, 453, 354, 345, 554, 445, 334, 553, 443

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