A) 3 : 2
B) 2 : 3
C) 3 : 4
D) 2 : 21
Correct Answer: D
Solution :
\[x:y=8:9\] \[\therefore \] \[\frac{5x-4y}{3x+2y}=\frac{5\left( \frac{x}{y} \right)-4}{3\left( \frac{x}{y} \right)+2}=\frac{5\left( \frac{8}{9} \right)-4}{3\left( \frac{8}{9} \right)+2}\] \[=\frac{40-36}{24+18}=\frac{4}{42}\] \[=2:21\]You need to login to perform this action.
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