Q55. If a:b:c = 1:2:3 and b:c:d = 2:3:4, find the combined ratio a:b:c:d.Mathematics — Ratio And Proportion — Question 55 of 75A. 3:2:1:4B. 1:2:3:4C. 1:3:2:4D. 2:4:6:8Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →