Question

If $A:B=6:7$ and $B:C=8:9$, then $A:C$ is

• A. $21:16$
• B. $16:21$
• C. $48:63$
• D. $63:48$

Answer 1

Answer: (B), (C)

The correct options are
B $16:21$
C $48:63$

$\frac{A}{B}=\frac{6}{7}=\frac{48}{56}\&\frac{B}{C}=\frac{8}{9}=\frac{56}{63}$

$\Rightarrow A:B:C=48:56:63$

$\Rightarrow A:C=48:63=16:21$