A) 15 : 8
B) 12 ; 10
C) 8 : 5
D) 8 : 15
Correct Answer: A
Solution :
\[\frac{A}{B}=\frac{2}{3}\Rightarrow B=\frac{3}{2}A\] ?(i) Also, \[B:C=4:5\] or \[\frac{B}{C}=\frac{4}{5}\] \[\Rightarrow \frac{\frac{3}{2}A}{C}=\frac{4}{5}\] or \[\frac{3A}{2C}=\frac{4}{5}[from\,\,(i)]\] \[\Rightarrow \frac{A}{C}=\frac{4\times 2}{5\times 3}\Rightarrow \frac{A}{C}=\frac{8}{15}\Rightarrow C:A=15:8\]You need to login to perform this action.
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