Comprehension: The following table shows the number of students enrolled in four different Colleges (A-D) during the four years from 2020 to 2023. Based on the data in the table, answer the questions that follow.

\begin{array}{ccccc}& \multicolumn{4}{c}{\text{Year-wise Enrolment of Students in Colleges}}\\ \text{Year}& \multicolumn{4}{c}{\text{Number of Students Enrolled in College}}\\ & \text{A}& \text{B}& \text{C}& \text{D}\\ 2020& 1200& 900& 1000& 700\\ 2021& 1100& 800& 1300& 900\\ 2022& 1400& 1000& 1200& 1100\\ 2023& 600& 700& 800& 1000\end{array}

If the ratio between number of girls and boys in College B in 2021 is 3 : 5 and the ratio between the number of girls and boys in College C in 2022 is

7: 5, then what is the ratio between the  number of girls in College B in 2021 to the number of boys of College C in 2022?