Justin Bieber in his school days, mixed water and HCL in two test tubes having the same volume. In test tube A the ratio of water and HCL is 7 ∶ 11 while in test tube B, it is 13 ∶ 23. If both these test tube are poured in a third test tube C, then calculate the final ratio of water and HCL?
1
1 ∶ 2
2
7 ∶ 5
3
1 ∶ 3
4
3 ∶ 5