Solution:
(Note: We will assume that “between 1 and 30” means “between 1 and 30, inclusive.” Also, the question should have said “approximately what percent …”)
The odd numbers between 1 and 30 (inclusive) that divide 7,700 completely are 1, 5, 7, 11 and 25.
Since there are (29 - 1)/2 + 1 = 28/2 + 1 = 15 odd integers between 1 and 30 (inclusive) , the percentage of odd numbers that divide 7,700 completely is:
5/15 x 100 = 1/3 x 100 = 33 percent
Answer: D
