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OpenStudy (hotpinkgirl):
How many 2- digit numbers can be formed using only the digits 2,3,5,6, of the digits are not be repeated within a number? A. 11 B. 12 C. 0 D. 2
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OpenStudy (hotpinkgirl):
@Michele_Laino
OpenStudy (perl):
how many ways for the first number? how many ways for the second number (don't repeat)
OpenStudy (z4k4r1y4):
ther are four digits and each only has three possible combinations.
OpenStudy (hotpinkgirl):
is it B?
OpenStudy (hotpinkgirl):
@perl @Z4K4R1Y4
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OpenStudy (hotpinkgirl):
@Mehek14
Mehek (mehek14):
yes B
OpenStudy (hotpinkgirl):
can you explain the answer please : )
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