# By how many meters can A beat C in the race [closed]

A beats B by 200 m in arace of 800 m.B beats C by 100 m in a 1000 m race. 1)Approximately by how many meters can A beat C in a race of 560m? 2)Approximately by how many meters can A beat C in a race of 500 m?

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## closed as off-topic by Jonas Meyer, Micah, Behaviour, user7530, anortonDec 12 at 21:58

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Jonas Meyer, Micah, Behaviour, user7530, anorton
If this question can be reworded to fit the rules in the help center, please edit the question.

This is the tenth homework question you ask in the last few days without showing the least work or thought of your own. I'm starting to get really tired of this. Moreover, I told you already that the number-theory tag is definitely not appropriate for this kind of questions. Please read this page attentively. –  t.b. Apr 26 '11 at 15:41

Hint: If the speeds of $A$, $B$ and $C$ are $a$, $b$ and $c$ metres per second respectively, then what is the relationship between $a$ and $b$, and between $b$ and $c$, and so between $a$ and $c$? Then use this to answer your questions.
For example, $A$ runs $800$ metres in the same time it takes $B$ to run $800-200=600$ metres so $\frac{a}{b}=\frac{800}{600}$.