a:b=5:7 and b:c=7:9

Question

ratio and proportion.

 

Answer 1

If a/b = 5/7 and b/c = 7/9 then a/c = 5/9              [Trasitive property of ratios]

We have a/b = 5/7, b/c = 7/9 and a/c = 5/9.

Hence we can equate with some constant n to find of a, b, c values.

Therefore a = 5n, b = 7n, c = 9n where n є Z