Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

income tax

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Mon Jun 04, 2007 7:37 am
Thanked: 6 times

by sonu_thekool » Wed Jan 07, 2009 8:24 am
I think the answer is C - 50 + 3I/100

This is how I approached it.

Lets call the Income of the person as I.

2% of I would be 2I/100

Arithmetic Mean (Average) of 100 units of currency = Sum of 100 units / 100 = 50*100 / 100 = 50

1% of I would be I/100

Adding them all up = 50 + 3I/100

Is this the right approach ? What is the OA ?
Top
Join the discussion
Legendary Member
Posts: 940
Joined: Tue Aug 26, 2008 3:22 amFollowed by: 1 member
Thanked: 55 times

by iamcste » Wed Jan 07, 2009 8:56 am
sonu_thekool wrote:I think the answer is C - 50 + 3I/100
Did you mean B
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 9:06 am
sonu_thekool wrote:I think the answer is C - 50 + 3I/100



Arithmetic Mean (Average) of 100 units of currency = Sum of 100 units / 100 = [color=red]50[/color]*100 / 100 = 50

? What is the OA ?

From where did u got this 50 ???????????????
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Mon Jun 04, 2007 7:37 am
Thanked: 6 times

by sonu_thekool » Wed Jan 07, 2009 9:07 am
iamcste wrote:
sonu_thekool wrote:I think the answer is C - 50 + 3I/100
Did you mean B
Sorry, I meant B.

What is the OA ?
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 259
Joined: Thu Jan 18, 2007 8:30 pm
Thanked: 16 times

by amitabhprasad » Wed Jan 07, 2009 10:03 am
I am getting "C"
50+I/40
Av of 100+1%of I = 50+I/200
Add 2% of I to it = 2*I/100+I/200+50
= I/40+50
Whats OA ?
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Mon Jun 04, 2007 7:37 am
Thanked: 6 times

by sonu_thekool » Wed Jan 07, 2009 11:01 am
amitabhprasad wrote:I am getting "C"
50+I/40
Av of 100+1%of I = 50+I/200
Add 2% of I to it = 2*I/100+I/200+50
= I/40+50
Whats OA ?
You have the same approach as mine but

Av of 100 + 1% of I = 50 + I/100 (Not 50 + I/200)
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 11:09 am
vivek.kapoor83 wrote:
sonu_thekool wrote:I think the answer is C - 50 + 3I/100



Arithmetic Mean (Average) of 100 units of currency = Sum of 100 units / 100 = [color=red]50[/color]*100 / 100 = 50

? What is the OA ?

From where did u got this 50 ???????????????
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 11:10 am
amitabhprasad wrote: Av of 100+1%of I = 50+I/200
?
can u explain the above step, how u got 50 ?
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Mon Jun 04, 2007 7:37 am
Thanked: 6 times

by sonu_thekool » Wed Jan 07, 2009 11:13 am
The Average of a set = Sum of all the numbers / no. of terms in the set

A = S/n

So, Average of 100 items in the set = Sum of 100 terms / 100

Sum of consecutive numbers can be found by multiplying the number in the middle of the sequence (50) with the number of terms in the sequence

==> 50 * 100 ==> 5000

Average = 5000 / 100 = 50

This is how I got 50.
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 11:30 am
sonu_thekool wrote:The Average of a set = Sum of all the numbers / no. of terms in the set

A = S/n

So, Average of 100 items in the set = Sum of 100 terms / 100

Sum of consecutive numbers can be found by multiplying the number in the middle of the sequence (50) with the number of terms in the sequence

==> 50 * 100 ==> 5000

Average = 5000 / 100 = 50

This is how I got 50.

Im just readin it 1st time..strange. i didnt knw that
Top
Join the discussion
Legendary Member
Posts: 594
Joined: Thu Aug 14, 2008 11:51 pm
Thanked: 12 times

by nervesofsteel » Wed Jan 07, 2009 11:47 am
vivek.kapoor83 wrote:
sonu_thekool wrote:The Average of a set = Sum of all the numbers / no. of terms in the set

A = S/n

So, Average of 100 items in the set = Sum of 100 terms / 100

Sum of consecutive numbers can be found by multiplying the number in the middle of the sequence (50) with the number of terms in the sequence

==> 50 * 100 ==> 5000

Average = 5000 / 100 = 50

This is how I got 50.

Im just readin it 1st time..strange. i didnt knw that

Vivek

is 50+3I/100 the OA..??

Approach by Sonu sounds good
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 11:55 am
OA is C
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Mon Jun 04, 2007 7:37 am
Thanked: 6 times

by sonu_thekool » Wed Jan 07, 2009 11:59 am
vivek.kapoor83 wrote:OA is C
Can you please post any explanation given to show how the answer is 'C' -
50 + I/40 ?
Top
Join the discussion
Legendary Member
Posts: 833
Joined: Mon Aug 04, 2008 1:56 am
Thanked: 13 times

by vivek.kapoor83 » Wed Jan 07, 2009 12:06 pm
Sorry dear,
there are no explanation in GMAT prep
Top
Join the discussion