GRE Prep 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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
GRE Math Challenge #75-What percent of the integers
[#permalink]
03 May 2015, 01:32
03 May 2015, 01:32
Expert Reply
00:00
Question Stats:
95% (01:05) correct
4% (01:28) wrong based on 21 sessions
Hide Show timer Statistics
What percent of the integers between 200 and 999, inclusive, end with the digits “03”?
(A) 1%
(B) 25
(C) 3%
(D) 4%
(E) 5%
(A) 1%
(B) 25
(C) 3%
(D) 4%
(E) 5%
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: GRE Math Challenge #75-What percent of the integers
[#permalink]
07 Aug 2017, 08:20
07 Aug 2017, 08:20
1
sandy wrote:
What percent of the integers between 200 and 999, inclusive, end with the digits “03”?
(A) 1%
(B) 25
(C) 3%
(D) 4%
(E) 5%
(A) 1%
(B) 25
(C) 3%
(D) 4%
(E) 5%
A nice rule says: the number of integers from x to y inclusive equals y - x + 1
So, the number of integers from 200 to 999 inclusive = 999 - 200 + 1 = 800
How many of those 800 integers end in "03"?
Well, we can quickly list them: 203, 303, 403, 503, 603, 703, 803, 903
There are 8 integers that end in "03"
8/800 = 1/100 = 1%
Answer:
Show: ::
A
Cheers,
Brent
Re: GRE Math Challenge #75-What percent of the integers
[#permalink]
02 Dec 2021, 10:13
02 Dec 2021, 10:13
Expert Reply
Bumping for discussion. Try this one and get Kudos for a correct solution!!!!
