Henry eats X scones in X percent of the time it takes Rachel to eat Y scones. If Rachel eats four scones in ten minutes, then the number of minutes it takes Henry to eat 4 scones must be equal to which of the following? Choose the correct choice from the following choices:
A) Y/10
B) 200/Y
C) 100Y/(8X)
D) XY/200
E) Y/(5X)
Rachel eats 4 scones/10 minutes = 2/5 scones per minute   The time for Rachel to eat 1 scone is 5/2 minutes.   The time for Rachel to eat Y scones is 5Y/2 minutes.   The time for Henry to eat X scones is 5YX/200 minutes.   The time for Henry to eat 1 scone is 5Y/200 minutes.   The time for Henry to eat 4 scones is 20Y/200 = Y/10 minutes.   The answer is Y/10.
<result>A</result>
Henry eats X scones in X percent of the time it takes Rachel to eat Y scones. If Rachel eats four scones in ten minutes, then the number of minutes it takes Henry to eat 4 scones must be equal to which of the following?