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.
A secretary typed 10 letters, each of which had 1or 2 pages. If the se
[#permalink]
27 Aug 2024, 02:51
27 Aug 2024, 02:51
Expert Reply
00:00
Question Stats:
100% (00:31) correct
0% (00:00) wrong based on 1 sessions
Hide Show timer Statistics
A secretary typed 10 letters, each of which had 1or 2 pages. If the secretary typed 20 pages in all, how many of the letters had 2 pages?
Show: ::
10
- Part of the project: GRE Quant & Verbal ADVANCED Daily Challenge 2024 Edition - Gain 20 Kudos & Get FREE Access to GRE Prep Club TESTS
- Also replying to the unanswered questions
Re: A secretary typed 10 letters, each of which had 1or 2 pages. If the se
[#permalink]
10 Dec 2024, 13:55
10 Dec 2024, 13:55
Expert Reply
We know that a secretary typed 10 letters, each of which had 1 or 2 pages; we need to find the number of letters which had 2 pages if it is known that she typed 20 pages in all.
Let the number of 1 page letter \& the 2 page letters typed by the secretary be 'a' \& 'b' respectively.
We get $\(a+b=10 \& a+2 b=20\)$, subtracting both the equations we get $\(a+2 b-(a+b)=20-10$ $=10\)$ which gives $\(b=10\)$
Hence the number of 2 page letters typed by the secretary was 10 .
Let the number of 1 page letter \& the 2 page letters typed by the secretary be 'a' \& 'b' respectively.
We get $\(a+b=10 \& a+2 b=20\)$, subtracting both the equations we get $\(a+2 b-(a+b)=20-10$ $=10\)$ which gives $\(b=10\)$
Hence the number of 2 page letters typed by the secretary was 10 .
gmatclubot
Re: A secretary typed 10 letters, each of which had 1or 2 pages. If the se [#permalink]
10 Dec 2024, 13:55
Moderators:
