Mathematics 1 Deneme Sınavı Sorusu #1279034

The demand function of A is p(q) = 555 – (q / 5). What is the price when the demand is of unit elastic ?


555.0

812.5

257.5

1.110.0

55.5


Yanıt Açıklaması:

Ep = |(p / q) (dq / dp)| = 1 for unit elastic ; q = 2.575 – (5 p) ; dq / dp = -5 ; Ep = |(p / (2.575 – (5 p))) (-5)| = 1 ; p / (2.575 – (5 p)) (-5) = 1 ; 5 p / (2.575 – 5 p) = 1 ; 10 p = 2.575 ; p = 257.5 . pg. 166. Correct answer is C.

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