C.49/100
D.126/250
E.1999/4000
答案:D
36.If n=pqr, where p,q, and r are three different positive prime numbers, how many different positive divisors does n have, including 1 and n?
A.3
B.5
C.6
D.7
E.8
答案:E
37.1113171923
A decrease of 1 in which of the factors above would result in the greatest decrease in the product?
A.11
B.13
C.17
D.19
E.23
答案:A
38.Which of the following numbers is not the sum of three consecutive odd integers?
A.15
B.75
C.123
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