Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursday

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by AAPL » Thu Jan 28, 2021 2:10 am

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Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursday, she spent $5.43 total. On Tuesday and Wednesday, she spent $3.54 on each day. On Friday, she spent $7.89 on lunch. What was her average daily cost?

A. $3.19
B. $3.75
C. $3.90
D. $4.08
E. $4.23

OA D

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Source: Beat The GMAT — Problem Solving | Thu Jan 28, 2021 2:10 am

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Re: Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursd

by Brent@GMATPrepNow » Thu Jan 28, 2021 6:00 am

AAPL wrote: ↑
Thu Jan 28, 2021 2:10 am
GMAT Prep

Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursday, she spent $5.43 total. On Tuesday and Wednesday, she spent $3.54 on each day. On Friday, she spent $7.89 on lunch. What was her average daily cost?

A. $3.19
B. $3.75
C. $3.90
D. $4.08
E. $4.23

OA D

On Monday and Thursday, she spent $5.43 TOTAL
So, our running total = $5.43

On Tuesday and Wednesday, she spent $3.54 on each day
Running total = $5.43 + $3.54 + $3.54

On Friday, she spent $7.89 on lunch.
Running total = $5.43 + $3.54 + $3.54 + $7.89 = $20.40

What was her average daily cost?
The average cost over the 5 days = (total amount spent)/5
= $20.40/5
= $4.08

Answer: D

Brent Hanneson - Creator of GMATPrepNow.com

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Scott@TargetTestPrep: GMAT Instructor; Posts: 8155; Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members; Location: Los Angeles, CA; Thanked: 43 times

Re: Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursd

by Scott@TargetTestPrep » Wed Feb 03, 2021 9:14 am

AAPL wrote: ↑
Thu Jan 28, 2021 2:10 am
GMAT Prep

Ginger over the course of an average work-week wanted to see how much she spent on lunch daily. On Monday and Thursday, she spent $5.43 total. On Tuesday and Wednesday, she spent $3.54 on each day. On Friday, she spent $7.89 on lunch. What was her average daily cost?

A. $3.19
B. $3.75
C. $3.90
D. $4.08
E. $4.23

OA D

Solution:

The total she spent on lunch for the 5 days is:

5.43 + 3.54 x 2 + 7.89 = $20.40

Therefore, the average amount of money she spent on lunch per day is:

20.40/5 = $4.08

Answer: D

Scott Woodbury-Stewart
Founder and CEO
[email protected]

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