Last visit was: 25 Apr 2026, 16:33 It is currently 25 Apr 2026, 16:33
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,830
Own Kudos:
Given Kudos: 105,886
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,830
Kudos: 811,281
 [10]
1
Kudos
Add Kudos
9
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
GMATinsight
User avatar
Major Poster
Joined: 08 Jul 2010
Last visit: 25 Apr 2026
Posts: 6,977
Own Kudos:
16,917
 [7]
Given Kudos: 128
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Products:
Expert
Expert reply
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
Posts: 6,977
Kudos: 16,917
 [7]
4
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
General Discussion
User avatar
NickHalden
Joined: 15 Feb 2012
Last visit: 19 Jun 2016
Posts: 70
Own Kudos:
450
 [2]
Given Kudos: 216
Status:Perspiring
Concentration: Marketing, Strategy
GPA: 3.6
WE:Engineering (Computer Software)
1
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
User avatar
ashokk138
Joined: 20 Jul 2011
Last visit: 20 May 2025
Posts: 71
Own Kudos:
Given Kudos: 18
GMAT 1: 660 Q49 V31
GMAT 1: 660 Q49 V31
Posts: 71
Kudos: 45
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A salesman's income consists of a commission and a base salary of $350 per week. Over the past 5 weeks, his weekly income totals have been $406, $413, $420, $436 and $395. What must his average (arithmetic mean) commission be per week over the next two weeks so that his average weekly income is $500 over the 7-week period?

A. $150
B. $245
C. $365
D. $715
E. $730

Kudos for a correct solution.

Sum of commission for the seven weeks = 56+63+70+86+45+x+y = 150*7 (500 - 350 = 150)

x+y = 1050 - 320 => x+y = 730

They have asked avg. of x+y => (x+y)/2 = 730/2 = $365.

Option C
User avatar
KS15
Joined: 21 May 2013
Last visit: 25 Jul 2019
Posts: 531
Own Kudos:
Given Kudos: 608
Posts: 531
Kudos: 259
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A salesman's income consists of a commission and a base salary of $350 per week. Over the past 5 weeks, his weekly income totals have been $406, $413, $420, $436 and $395. What must his average (arithmetic mean) commission be per week over the next two weeks so that his average weekly income is $500 over the 7-week period?

A. $150
B. $245
C. $365
D. $715
E. $730

Kudos for a correct solution.

Total weekly income over 5 weeks=$406+$413+$420+$436+$395=$2070
For avg weekly income to be $500 over 7 weeks, we need total weekly income over 7 weeks=$3500
Now, $3500-$2070=$1430
From this, we subtract base salary for 2 weeks i.e $350*2=$700
Therefore, commission=$1430-$700=$730 for 2 weeks
Avg weekly commission=$365
Answer C
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,830
Own Kudos:
Given Kudos: 105,886
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,830
Kudos: 811,281
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A salesman's income consists of a commission and a base salary of $350 per week. Over the past 5 weeks, his weekly income totals have been $406, $413, $420, $436 and $395. What must his average (arithmetic mean) commission be per week over the next two weeks so that his average weekly income is $500 over the 7-week period?

A. $150
B. $245
C. $365
D. $715
E. $730

Kudos for a correct solution.

800score Official Solution:

We need to do this problem step-by-step.

First, we add up the total income amounts for the past 5 weeks:
$406 + $413 + $420 + $436 + $395 = $2070.

To average $500 over 7 weeks, the salesman would need to earn:
$500 × 7 = $3500.

Subtract $2070 from $3500 to determine how much he would need to earn, in total, over the next 2 weeks to average $500 for the 7 weeks:
$3500 – $2070 = $1430.

Since he will earn $700 in base salary over the next two weeks, the commission he must earn in the next two weeks is:
$1430 – $700 = $730.

This is an average of $730/2 = $365 per week for these two weeks.

The correct answer is choice (C).
avatar
jgcanada
Joined: 01 Jun 2015
Last visit: 05 Aug 2015
Posts: 9
Own Kudos:
Given Kudos: 7
Posts: 9
Kudos: 13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
We are looking for a 7 week average total income of $500 per week, or $150 plus $350 base.

The question does not ask about the base, so it can be ignored for now.

7 weeks * $150/week = $1,050

5 week commissions leading are 56+63+70+86+45 = $320

Total required - Earned so far = $1,050 - $320 = $730

Weeks remaining is 2, therefore commission required per week is $365
User avatar
ENGRTOMBA2018
Joined: 20 Mar 2014
Last visit: 01 Dec 2021
Posts: 2,319
Own Kudos:
3,890
 [1]
Given Kudos: 816
Concentration: Finance, Strategy
GMAT 1: 750 Q49 V44
GPA: 3.7
WE:Engineering (Aerospace and Defense)
Products:
GMAT 1: 750 Q49 V44
Posts: 2,319
Kudos: 3,890
 [1]
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Mascarfi
A salesman's income consists of two components: commission and regular salary. His salary is $350 a week, and his goal is to make enough money from commissions to average $500 in total income per week. Over the past 5 weeks, his weekly income totals have been $406, $413, $420, $436 and $395. What does he need to average (arithmetic mean) in commission income per week, over the next two weeks, to raise his average weekly income to $500 over the 7-week period?

A. $150
B. $245
C. $365
D. $715
E. $730

Total of the 5 weeks = 406+413+420+436+395 = 2070.

Total for the entire 7 week period = 500*7 = 3500

Thus the 2 remaining income totals = 3500-2070 = 1430, per week income total = 1430/2 = 715.

So per week he needs to have an income total of = 715$ out of which 350 is his base income. Thus the commission = 715-350 = 365$. C is the correct answer.
User avatar
mvictor
User avatar
Board of Directors
Joined: 17 Jul 2014
Last visit: 14 Jul 2021
Posts: 2,118
Own Kudos:
Given Kudos: 236
Location: United States (IL)
Concentration: Finance, Economics
GMAT 1: 650 Q49 V30
GPA: 3.92
WE:General Management (Transportation)
Products:
GMAT 1: 650 Q49 V30
Posts: 2,118
Kudos: 1,277
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A salesman's income consists of a commission and a base salary of $350 per week. Over the past 5 weeks, his weekly income totals have been $406, $413, $420, $436 and $395. What must his average (arithmetic mean) commission be per week over the next two weeks so that his average weekly income is $500 over the 7-week period?

A. $150
B. $245
C. $365
D. $715
E. $730

Kudos for a correct solution.

average for 7 weeks 500. total must be 3500
now, last 2 weeks base salary 350x2=700$
406+413=819
420+436=856
819+856=1675+395 = 2070.
2070+700=2770. sum for $ received first 5 weeks + base salary last 2 weeks
3500-2770=730 - must make in commission in last 2 weeks.
730/2 = 365 average commission/week must have

C
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,986
Own Kudos:
Posts: 38,986
Kudos: 1,118
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
Math Expert
109830 posts
Tuck School Moderator
852 posts