Question

If ∶ = 3 ∶ 5 ∶ = 6 ∶ 7, find a∶b∶c .

Answer 1

answers :A:B = 5:6 So, A/B = 5/6 A = 5B/6 ......(1) B:C = 4:7 So, B/C = 4/7 C = 7B/4 ......(2)From (1) and (2), A:B:C = 5B/6:B:7B/4 = 5/6:1:7/4 = 10:12:21