how many three digit number ending with 9 the nine can be formed from the digits 2 3 5 6 7 and 9 ? each digit used only once
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Answer:
25 numbers in total
Step-by-step explanation:
239.....329.....529.....629.....729
259.....359.....539.....639.....739
269.....359.....569.....659.....759
279.....379.....579.....679.....769
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