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A “descending number” is a three-digit number, such that the units digit is less than the tens digits and the tens digit is less than the hundreds digit. What is the probability that a three-digit number chosen at random is a “descending number”?
(A) 3/25
(B) 2/9
(C) 2/15
(D) 1/9
(E) 1/10
Answer: C
Source: Magoosh
(A) 3/25
(B) 2/9
(C) 2/15
(D) 1/9
(E) 1/10
Answer: C
Source: Magoosh
