Search found 31 matches

Working at the same rate, 6 men can do 3/5 of a job...

Working at the same rate, 6 men can do 3/5 of a job...

Working at the same rate, 6 men can do 3/5 of a job in 20 minutes. At this rate, how many minutes would it take one man to do 1/4 of the job?

A. 30 minutes
B. 40 minutes
C. 50 minutes
D. 60 minutes
E. 70 minutes

by Poisson

Wed Dec 28, 2016 8:31 am
Forum: Problem Solving
Topic: Working at the same rate, 6 men can do 3/5 of a job...
Replies: 6
Views: 2665

The most vexing problem faced by researchers...

The most vexing problem faced by researchers...

The most vexing problem faced by researchers exploring wind-powered generation of electricity is achieving a constant flow of power from an unpredictable natural source that meets demand, but so the flow does not overload electrical grids with sudden voltage increases A. achieving a constant flow of...

by Poisson

Tue Dec 20, 2016 8:43 am
Forum: Sentence Correction
Topic: The most vexing problem faced by researchers...
Replies: 4
Views: 4399

What is the remainder when the positive integer N is divided

What is the remainder when the positive integer N is divided

What is the remainder when the positive integer N is divided by 12? 1) When N is divided by 6, the remainder is 1. 2) When N is divided by 12, the remainder is greater than 5. Statement 1: N = 6A + 1 Integer A could be 0, 1, 2, 3, 4 etc Plugging in for A, N could then be 1, 7, 13, 19, 25 etc Dividin...

by Poisson

Thu Dec 15, 2016 9:18 am
Forum: Data Sufficiency
Topic: What is the remainder when the positive integer N is divided
Replies: 4
Views: 7541

A farmer constructs a fence along the northern edg

Problem Solving

A farmer constructs a fence along the northern edge of his property, using materials such that he places a post every 7 meters. if he uses 100 posts, how many meters will the fence span? a)686 b)693 c)700 d)707 e)770 Please assist with above problem. Let's look for a pattern... 1 post: fence span =...

by Poisson

Fri Nov 25, 2016 3:23 pm
Forum: Problem Solving
Topic: A farmer constructs a fence along the northern edg
Replies: 4
Views: 2263

OG 115

Problem Solving

I also tried to solve this using following values but could not find the correct answer. Can some one please explain what is the correct value of juan's income of Tim is 100? Tim's income = 100 Mary's income = 160 Juan = 140 I thought I would share my work on this problem with others who might run ...

by Poisson

Sun Nov 13, 2016 10:35 am
Forum: Problem Solving
Topic: OG 115
Replies: 11
Views: 4707

OG 115

Problem Solving

I also tried to solve this using following values but could not find the correct answer. Can some one please explain what is the correct value of juan's income of Tim is 100? Tim's income = 100 Mary's income = 160 Juan = 140 I thought I would share my work on this problem with others who might run ...

by Poisson

Sun Nov 13, 2016 10:32 am
Forum: Problem Solving
Topic: OG 115
Replies: 11
Views: 4707

circle is drawn within the interior rectangle

Data Sufficiency

A circle is drawn within the interior of a rectangle. Does the circle occupy more than one-half of the rectangleâ€™s area? (1) The rectangleâ€™s length is more than twice its width. (2) If the rectangleâ€™s length and width were each reduced by 25% and the circle unchanged, the circle would still f...

by Poisson

Tue Oct 04, 2016 7:51 am
Forum: Data Sufficiency
Topic: circle is drawn within the interior rectangle
Replies: 5
Views: 2020

Two water pumps working together...

Problem Solving

Hi yass20015, This is an example of a Work Formula question. Any time you have two entities (people, machines, water pumps, etc.) working on a job together, you can use the following formula: (AB)/(A+B) = Total time to do the job together Here, we're told that the total time = 4 hours and that one ...

by Poisson

Sat Oct 01, 2016 4:34 am
Forum: Problem Solving
Topic: Two water pumps working together...
Replies: 7
Views: 4232

GMATPrep: Find the constant increase per year

Problem Solving

Hi , Ii am bit confused, shouldn't be like below equation? 4+6x=1/5 + (4+4x) Please advise. Thanks Shreyans Here's my translation of the sentence: At the end of the 6th year, the tree was 1/5 taller than it was at the end of the 4th year 4+ 6H = (4 + 4H) + 0.2(4 + 4H) Distribute the 0.2 to both val...

by Poisson

Thu Sep 01, 2016 4:43 am
Forum: Problem Solving
Topic: GMATPrep: Find the constant increase per year
Replies: 8
Views: 3319

ratios / fraction problem

Problem Solving

Hi Mitch, Could you please explain how to apply this approach to the following question? Each time I try it, I get an incorrect answer. Mix A is 35% red and 65 % blue. Mix B is 50% red and 50% blue. If you begin with 20 pounds of mix A, how many pounds of mix B do you need to end up with a combined...

by Poisson

Tue Aug 30, 2016 4:15 pm
Forum: Problem Solving
Topic: ratios / fraction problem
Replies: 20
Views: 10474

Integer

Data Sufficiency

Hi, zaarathelab! First of all, sorry for the delay. IÂ´ve not come here for a LONG time (too busy)! You are absolutely right!! Let me put the bifurcation explicitly, for all readers: First case: (Please note both sums are equal.) S = {2,2,2,2,2,2} then average(S) = 2 T = {4,4,4} then average(T) = 4...

by Poisson

Tue Aug 30, 2016 10:11 am
Forum: Data Sufficiency
Topic: Integer
Replies: 12
Views: 3077

ratios / fraction problem

Problem Solving

Hi Mitch, Can u pls explain the steps for the below question using the same approach that u explained earlier A mixture contains wine and water in the ratio 3:2.Another contains in the ratio 4:5. How many gallons of latter to be mixed with 3 gallons of first so that resulting mix contains equal qty...

by Poisson

Mon Aug 29, 2016 5:31 pm
Forum: Problem Solving
Topic: ratios / fraction problem
Replies: 20
Views: 10474

GMAT Prep Question - Negative Correlation

GMAT Prep Question - Negative Correlation

Hi everyone, I've tried my hand at this but I'm not understanding how question 2 can be confirmed as True. I tried plotting the points (# of self-checkout unlimited on the X-axis, average customer age on the y-axis) and I don't see any kind of correlation. Could someone please shed some light on thi...

by Poisson

Mon Aug 29, 2016 2:36 pm
Forum: GMAT Integrated Reasoning
Topic: GMAT Prep Question - Negative Correlation
Replies: 1
Views: 4260

Can you explain how this makes sense?

GMAT Math

Totally clueless with this chart-involved IR question.. Thanks in advance. Dear Yumi, I'm happy to help. :-) You may find this blog informative: http://magoosh.com/gmat/2013/gmat-ir-numerical-algorithm-flowchart-problems/ Let's just follow this through, step-by-step. We have to keep track of three ...

by Poisson

Mon Aug 29, 2016 1:59 pm
Forum: GMAT Math
Topic: Can you explain how this makes sense?
Replies: 4
Views: 3249