Two carpenters, working in the same pace, can build 2 desks in two hours and a half. How many desks can 4 carpenters build in 4 hours?
(a) 2.4.
(b) 3.6.
(c) 4.2.
(d) 5.5.
(e) 6.4
This problem is not that difficult but I want to know different ways to solve this problem.
Work Problem
This topic has expert replies
- GMATGuruNY
- GMAT Instructor
- Posts: 15539
- Joined: Tue May 25, 2010 12:04 pm
- Location: New York, NY
- Thanked: 13060 times
- Followed by:1906 members
- GMAT Score:790
If 2 carpenters can build 2 desks in 2.5 hours, then in 2.5 hours, 4 carpenters can build 4 desks, since twice the number of carpenters will accomplish twice the amount of work.The Jock wrote:Two carpenters, working in the same pace, can build 2 desks in two hours and a half. How many desks can 4 carpenters build in 4 hours?
(a) 2.4.
(b) 3.6.
(c) 4.2.
(d) 5.5.
(e) 6.4
This problem is not that difficult but I want to know different ways to solve this problem.
Now we can set up the following proportion:
4 desks/2.5 hours = x desks/4 hours
4/2.5 = x/4
x = 16/2.5 = 6.4.
The correct answer is E.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3