Q15. If a : b = 4 : 5 and b : c = 6 : 7, then what is a : c?Mathematics — Ratio And Proportion — Question 15 of 75A. 24 : 35B. 24 : 30C. 4 : 7D. 20 : 21Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →