if a : b is 3 : 4 and b : c is 4 : 5 then a : c is equal to
the two ratios given are having the same number 4 for b in both the ratios . hence - a : b = 3 : 4 b : c = 4 : 5 = > a : c = 3 : 5 answer b
multiply(divide(4, 5), divide(3, 4))