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
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
tenfold
This topic has expert replies
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
"
Kanwar
"In case my post helped, do care to thank. Happy learning
"-
Shalabh's Quants
- Master | Next Rank: 500 Posts
- Posts: 134
- Joined: Fri Apr 06, 2012 3:11 am
- Thanked: 35 times
- Followed by:5 members
Magnitude/Intensity(say initially it is 1)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
125/1
135/1*10=10
145/10*10=100
155/100*10=1000
165/1000*10=10000.
Shalabh Jain,
e-GMAT Instructor
e-GMAT Instructor
GMAT/MBA Expert
-
Jeff@TargetTestPrep
- GMAT Instructor
- Posts: 1462
- Joined: Thu Apr 09, 2015 9:34 am
- Location: New York, NY
- Thanked: 39 times
- Followed by:22 members
Since 125 is 40 away from 165, the intensity of 165 compared to 125 is 10 x 10 x 10 x 10 = 10,000.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
Answer: E
Jeffrey Miller
Head of GMAT Instruction
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews
