BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

tenfold

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 32
Joined: Fri Jul 27, 2012 10:18 am
Thanked: 1 times

tenfold

by msbelasco » Thu Sep 06, 2012 10:52 am
Any clarification on how to do this would be great.

On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125?

(A) 40

(B) 100

(C) 400

(D) 1,000

(E) 10,000

Answer is e
Top
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 99
Joined: Thu Jun 09, 2011 2:09 pm
Thanked: 11 times

by kanwar86 » Thu Sep 06, 2012 12:27 pm
msbelasco wrote:Any clarification on how to do this would be great.

On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125?

Difference in magnitude of two intensities = 165-125 = 40
As, each increment of 10 represents ten fold increase, increment of 4*10 represents 10*10*10*10 fold increase in magnitude
Answer = 10,000 (Option E)
Regards

Kanwar

"In case my post helped, do care to thank. Happy learning :)"
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 134
Joined: Fri Apr 06, 2012 3:11 am
Thanked: 35 times
Followed by:5 members

by Shalabh's Quants » Fri Sep 07, 2012 7:09 am
msbelasco wrote:Any clarification on how to do this would be great.

On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125?

(A) 40

(B) 100

(C) 400

(D) 1,000

(E) 10,000

Answer is e
Magnitude/Intensity(say initially it is 1)
125/1
135/1*10=10
145/10*10=100
155/100*10=1000
165/1000*10=10000.
Shalabh Jain,
e-GMAT Instructor
Top
User avatar
GMAT Instructor
Posts: 1462
Joined: Thu Apr 09, 2015 9:34 am
Location: New York, NY
Thanked: 39 times
Followed by:22 members

by Jeff@TargetTestPrep » Tue Jan 02, 2018 10:04 am
msbelasco wrote: On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125?

(A) 40

(B) 100

(C) 400

(D) 1,000

(E) 10,000
Since 125 is 40 away from 165, the intensity of 165 compared to 125 is 10 x 10 x 10 x 10 = 10,000.

Answer: E

Jeffrey Miller
Head of GMAT Instruction
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews
Top
Post new topic Post Reply
• Page 1 of 1