How many four digit numbers can be made by using exactly three different digits among the digits 4 5 6

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How many four-digit numbers can be made by using exactly three different digits among the digits 4, 5, 6 and 7?

1) 156
2) 124
3) 132
4) 144
5) 120: Asked In MBA (11 years ago); Unsolved Read Solution (1); Is this Puzzle helpful? (0) (1) Submit Your Solution

Dimple

India

Punjab

Time: 00:01:33

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