NEW HERE? LEARN MORE
closeclose
Last visit was: 08 May 2024, 05:01 It is currently 08 May 2024, 05:01
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

In the last week, Todd has lost 12 pounds and now weighs exactly three

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 93094
Own Kudos [?]: 622132 [3]
Given Kudos: 81798
Send PM
CAT Tests Forum Quiz Mode
In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink] New post   25 Jul 2017, 22:41
1
Kudos
1
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

35% (medium)

Question Stats:

64% (01:21) correct 36% (02:02) wrong based on 123 sessions
Hide Show timer Statistics
In the last week, Todd has lost 12 pounds and now weighs exactly three times as much as his younger brother. Together they weigh 280 pounds. How much did Todd weigh a week ago, in pounds?

A. 210
B. 213
C. 220
D. 222
E. 225
ShowHide Answer
Official Answer
D
avatar
B
Tango3
Intern
Intern
Joined: 27 Oct 2016
Posts: 19
Own Kudos [?]: 7 [0]
Given Kudos: 233
Send PM
Re: In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink] New post   25 Jul 2017, 23:03
Answer is D

I solved this with answer choices given.

Going with D. Todd weigh 222 pounds a week ago. Now he has lost 12 pounds so current weight is 210 pounds
Todd and his younger brother weighs 280 pounds

210 + x =280 ..where x is younger brother's weight. solving we get x=70
Now Todd weighs three times as much as his younger brother

younger brother's weight x 3 = todd's current weight
70 x 3 =210.. it is match
User avatar
L
pushpitkc
Senior PS Moderator
Joined: 26 Feb 2016
Posts: 2873
Own Kudos [?]: 5214 [1]
Given Kudos: 47
Location: India
GPA: 3.12
Send PM
In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink] New post   25 Jul 2017, 23:04
1
Bookmarks
Let Todd's weight be x and his brother's weight be y

From the question stem,
x - 12 = 3y => x - 3y = 12 -> 1
Also, since the sum of their weights is 280,
x - 12 + y = 280 => x + y = 292 -> 2

(1) - (2) gives -4y = -280 => y = 70
Therefore, x = 280 + 12 - 70 = 222(Option D)
User avatar
P
JeffTargetTestPrep
Target Test Prep Representative
Joined: 04 Mar 2011
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Posts: 3043
Own Kudos [?]: 6327 [1]
Given Kudos: 1646
Send PM
Forum Quiz Mode
Re: In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink] New post   09 Aug 2017, 13:35
1
Kudos
Expert Reply
Bunuel wrote:
In the last week, Todd has lost 12 pounds and now weighs exactly three times as much as his younger brother. Together they weigh 280 pounds. How much did Todd weigh a week ago, in pounds?

A. 210
B. 213
C. 220
D. 222
E. 225


We can let t = Todd’s old weight and b = his brother’s current weight.

We can create the following equations:

t - 12 = 3b

And

t - 12 + b = 280

Replacing t - 12 in the second equation by 3b, we have:

3b + b = 280

4b = 280

b = 70

Substitute b = 70 back into the very first equation, we have:

t - 12 = 3(70)

t = 222

Alternate Solution:

Let’s let x = brother’s current weight. This means that Todd’s current weight = 3x. We have:

x + 3x = 280

4x = 280

x = 70

Todd’s brother weighs 70 pounds, and Todd currently weighs (3)(70) = 210 pounds. Last week Todd weighed 12 more pounds, so last week he weighed 222 pounds.

Answer: D
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32841
Own Kudos [?]: 828 [0]
Given Kudos: 0
Send PM
Re: In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink] New post   19 Aug 2022, 06:59
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
gmatclubot
Re: In the last week, Todd has lost 12 pounds and now weighs exactly three [#permalink]
19 Aug 2022, 06:59
Moderators:
Bunuel
Math Expert
93094 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions