A) 80 cm
B) 75 cm
C) 67 cm
D) 50 cm
Correct Answer: C
Solution :
As \[\frac{x}{y}=\frac{40}{100-40}=\frac{40}{60}\] \[\frac{3x}{y}=3\left( \frac{40}{60} \right)=\frac{120}{60}=\frac{2}{1}\] Now, the total length = 100 \[\therefore \] Required length \[=\frac{100}{3}\times 2=67\,m\].You need to login to perform this action.
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