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.
How many keystrokes are needed to type numbers from 1 to 1000? A. 270
[#permalink]
22 Sep 2021, 05:30
22 Sep 2021, 05:30
Expert Reply
00:00
Question Stats:
40% (01:52) correct
60% (01:13) wrong based on 10 sessions
Hide Show timer Statistics
How many keystrokes are needed to type numbers from 1 to 1000?
A. 2704
B. 2890
C. 2893
D. 3001
E. None of these
A. 2704
B. 2890
C. 2893
D. 3001
E. None of these
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: How many keystrokes are needed to type numbers from 1 to 1000? A. 270
[#permalink]
22 Sep 2021, 05:38
22 Sep 2021, 05:38
1
Carcass wrote:
How many keystrokes are needed to type numbers from 1 to 1000?
A. 2704
B. 2890
C. 2893
D. 3001
E. None of these
A. 2704
B. 2890
C. 2893
D. 3001
E. None of these
1-9
9 digits/keystrokes
10-99
There are 90 2-digit numbers
(90)(2) = 180 digits/keystrokes
100-999
There are 900 3-digit numbers
(900)(3) = 2700 digits/keystrokes
1000
4 digits/keystrokes
9 + 180 + 2700 + 4 = 2893
Answer: C
gmatclubot
Re: How many keystrokes are needed to type numbers from 1 to 1000? A. 270 [#permalink]
22 Sep 2021, 05:38
Moderators:
