The following pie charts show the number of students studying in different departments of an institute during the academic years 2019 and 2020 . The total number of students was 2000 and 2400 , respectively, in academic years 2019 and 2020.

What is the ratio of Commerce and Computer Science students taken together in 2019 to Engineering and Medical students taken together in 2020 ?

65 : 44

Number of Commerce and Computer Science students in 2019 : Number of engeneering and medical  students in 2020

\(\frac{25 + 14 }{100}\) × 2000   :   \(\frac{10 + 12 }{100}\) × 2400

\(\frac{39}{100}\) × 2000   :   \(\frac{22 }{100}\) × 2400

                    65                  :             44