If $latex a:b=\frac{2}{9}:\frac{1}{3}, b:c=\frac{2}{7}:\frac{5}{14} $ and $latex d:c=\frac{7}{10}:\frac{3}{15} $, then find a:b:c:d
If 
[A]56:84:30:30
[B]16:24:30:35
[C]56:24:30:30
[D]56:24:30:35
16:24:30:35
=>
=>
=>
=>
Hence option [B] is the tight answer.
