Study the given information carefully and answer the following questions: Data regarding the number of Doctors(D) and Engineers(E) in three colleges - A, B and C is given. 

College A: Ratio of male doctors and male engineers is 12 : 5 and the difference between them is 280. Total number of female doctors and female engineers is 300. Number of male engineers is 30 more than that of the number of female engineers.

College B: Sum of the number of male doctors and male engineers is equal to the sum of the number of female doctors and female engineers in college A. Ratio of the male doctors and male engineers together and female doctors and female engineers together is 6 : 7. Ratio of female doctors and female engineers is 2 : 3. Number of male doctors in college B is 1/3rd of the number of male engineers in college C.

College C: Male engineers is 1.5 times the number of female doctors. Sum of the number of female doctors and female engineers is 550. Number of female engineers is 70 more than the number of female doctors. Total number of male doctors and male engineers is 760.