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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

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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

by AAPL » Tue Oct 04, 2022 10:58 am

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A

B

C

D

E

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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. $$\150$$
B. $$\160$$
C. $$\164$$
D. $$\172$$
E. $$\185$$

OA A

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### Re: A lawyer charges her clients $$\200$$ for the first hour of her time and $$\150$$ for each additional hour. If the

by gmatter2012 » Fri Oct 14, 2022 8:07 pm
kindly post the question correctly . Option A is 155 not 150 !
https://gmatclub.com/forum/a-lawyer-cha ... 07627.html

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### Re: A lawyer charges her clients $$\200$$ for the first hour of her time and $$\150$$ for each additional hour. If the

by [email protected] » Thu Dec 15, 2022 6:45 pm
AAPL wrote:
Tue Oct 04, 2022 10:58 am
GMAT Prep

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. $$\150$$
B. $$\160$$
C. $$\164$$
D. $$\172$$
E. $$\185$$

OA A
We can let n = the total number of hours of the lawyer’s service to her client and create the equation:

1550 = 200 + 150(n - 1)

1350 = 150n - 150

1500 = 150n

10 = n

Thus, the average charge per hour was 1550/10 = 155 dollars.