question_answer

If \[a:b=2:3;\text{ }b:c=4:5\]and \[c:d=6:7,\]then \[a:d\] is =?

A)  \[12:35\]                      

B)  \[24:35\]

C)  \[16:35\]                      

D)  \[24:25\]

Correct Answer: C

Solution :

 \[a:b=2:3,\text{ }b:c=4:5\] and \[c:d=6:7\]