Correct Answer - Option 1 : 3 : 2
Given:
A = 80% more than C
B = 20% more than C
Calculation:
According to the problem
\({\rm{A}} = \frac{{180}}{{100}}C = 1.8C\;\) ---- (1)
\({\rm{B}} = \frac{{120}}{{100}}C = 1.2C\;\) ---- (2)
divide equation 1 by 2
⇒ \(\frac{{\rm{A}}}{{\rm{B}}} = \frac{{1.8C}}{{1.2C}}\;\)
⇒ \(\frac{{\rm{A}}}{{\rm{B}}} = \frac{3}{2}\;\)
∴ The ratio of A to B is 3 ∶ 2