runkun wrote:

In a given month, a lawyer charged his clients at an average rate of $400 per hour. In that particular month, seven of his clients were charged at average $410 per hour and the least of the hourly charge that the lawyer can accept is $375 per hour. How many clients did he have in that month?

(1) The hourly rates of each client are divisible by 5

(2) The lawyer had less than 20 clients that month

I got an inspiration from a question in

MGMAT's flashcard as follows;

5 people in a company earn an average

salary of $50,000. If 2 of the employees

earn an average of $65,000, what is the

average salary of the remaining 3

employees?

Hello

runkun.

Now task doesn't have discrepancies but there are two solutions possible:

1) 19 people with avg $400 --> sum 7600

7 people with avg 410 --> sum 2870

7600-2870 = 4730

10 people $395 + 2 people $390 = $4730

2) 18 people with avg $400 --> sum 7200

7 people with avg 410 --> sum 2870

7200-2870 = 4330

10 people $395 + 1 person $380 = $4330

Two cases are possible, so answer is E

This task will be correct with answer C if you change second statement on

"The lawyer had less than

11 clients that month"

_________________

Simple way to always control time during the quant part.

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