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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
A lawyer charges her clients $200 for the first hour of her time and $
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28 Jan 2023, 09:40
28 Jan 2023, 09:40
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A lawyer charges her clients $200 for the first hour of her time and $150 for each additional hour. If the lawyer charged her new client $1,550 for a certain number of hours of her time, how much was the average (arithmetic mean) charge per hour?
(A) $155
(B) $160
(C) $164
(D) $172
(E) $185
(A) $155
(B) $160
(C) $164
(D) $172
(E) $185
Re: A lawyer charges her clients $200 for the first hour of her time and $
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30 Jan 2023, 03:31
30 Jan 2023, 03:31
Expert Reply
ANS A
Fixed cost for 1 hour = $200
Let, extra hours taken be = y
therefore, 200 + 150x = 1550
150x = 1350
x = 9
total hours = x +1 = 9+1 = 10
total fees = 1550
mean = total fees/ total hours ---> 1550/10 -----> $155per hour on average was charged.
Fixed cost for 1 hour = $200
Let, extra hours taken be = y
therefore, 200 + 150x = 1550
150x = 1350
x = 9
total hours = x +1 = 9+1 = 10
total fees = 1550
mean = total fees/ total hours ---> 1550/10 -----> $155per hour on average was charged.
gmatclubot
Re: A lawyer charges her clients $200 for the first hour of her time and $ [#permalink]
30 Jan 2023, 03:31
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