A) 400 m.
B) 800 m.
C) 200 m.
D) None of these
Correct Answer: A
Solution :
Required distance \[\frac{(x+100)18}{10\times 5}=\frac{x\times 18}{8\times 5}\] \[\Rightarrow \] \[x+100=\frac{5}{4}x\] \[\Rightarrow \] \[\frac{4x-5x}{4}=-100\] \[\Rightarrow \] \[x=400\,\,m\]You need to login to perform this action.
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