[Solved] If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?

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Q.	If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?
A.	0.3333
B.	0.8333
C.	1.6667
D.	0.0333
Answer» A. 0.3333
Explanation: eccentricity is defined as the ratio of the distance from the focus to the distance from the directrix. hence from the formula of eccentricity, e = 10 ÷ 30 = 0.3333. since the value of eccentricity is less than one the conic is an ellipse.

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