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distance rate time

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distance rate time

by DJHJA » Fri Dec 17, 2010 4:07 pm
Hey guys, can any1 help with this one?


Peter ran X meters of the 100m dash in 5 seconds, runnning at the same rate, how many
seconds will it take Peter to run Z meters of the 200M dash?

A. 5Z/X B. 5ZX C. 5X/Z D. 5/XZ E. XZ/5
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by Bharat » Fri Dec 17, 2010 5:02 pm
Answer: A
the dash type is irrelevant here (because Peter runs at the same rate). solve using simple speed relations:
X meters = 5 seconds
1 meter = 5/X seconds
Z meters = 5Z/X seconds.

Let me know if you have questions.

Regards,
Bharat.
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