Factors, multiples, and divisibility

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datonman: Senior | Next Rank: 100 Posts; Posts: 53; Joined: Wed May 28, 2014 9:36 pmFollowed by: 1 member

by datonman » Fri Dec 04, 2015 10:35 am

How many positive integers less than 28 are prime numbers, odd multiples of 5, or the sum of a positive multiple of 2 and a positive multiple of 4?

A. 27
B. 25
C. 24
D. 22
E. 20

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Source: Beat The GMAT — Problem Solving | Fri Dec 04, 2015 10:35 am

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