Chance of getting into top 10 business school

Hi guys,

I am about to graduate from Indiana University this coming spring with degrees of applied math and economics, as well as minors in business and computer science. I am currently having a GPA of 3.73 across all major courses, which I think as quiet successful, but I really had a rough academic past. I used to attend Purdue Univerisity about three years(fall 2009-spring 2012), but only had a GPA about 1.6 in the pharmaceutical science/biochemistry program due to family circumstances/poor health, ended up dropping out and working in construction field while taking community college courses at the same time. I made a comeback to to college education in the spring 2014 at Indiana University, and now I have a quiet successful academic record.

My experiences at IU:

-active community services
-at least three leadership position in student organizations
-an economic related research under two of my professors
-two internship experiences at top companies such as GM and Ernst&Young.
-undergraduate career coach
-working part-time at school library
-will graduate with honors
-I have a 750+ GMAT score

I am wondering what are my chances of getting into top 15 graduate programs with a MA/MS of finance or business analytics? I had heard from someone saying that I’ll never be able to get into a graduate program because of my past at Purdue, even with these changes and a better record, now I just feel so hopeless.