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Thanks GMATGuruNY

Appreciate you taking the time to answer this but i've been trying to figure it out for 20 minutes!

I got the 1st part where you identified the consecutive even integers.

But I'm confused regarding the numbers carried over to the next sum!

Thank you

by Strongt

Sat Jan 14, 2012 10:22 pm
Forum: Problem Solving
Topic: MGMAT Question
Replies: 4
Views: 2812

MGMAT Question

S is the infinite sequence S1 = 2, S2 = 22, S3 = 222,...Sk = Sk-1 + 2(10k-1). If p is the sum of the first 30 terms of S, what is the eleventh digit of p, counting right to left from the units digit? 1 2 4 6 9 Answer is c is there a simple/effecient way to solve this question in less than 10 minutes

by Strongt

Sat Jan 14, 2012 3:23 pm
Forum: Problem Solving
Topic: MGMAT Question
Replies: 4
Views: 2812

If 4/x<1/3 what is the possible range of values for x? in case 1: x > 0 4/x < 1/3 12>x It says on the MGMAT Guide: If x and y are positive then flip the inequality if 1/3 > 1/5 then 3 < 5 and assumming both sides are positive in case 1, i flipped the inequality What am I missing here? To apply the ...

by Strongt

Fri Dec 16, 2011 8:41 am
Forum: Problem Solving
Topic: Inequality Problem
Replies: 3
Views: 1369

Inequality Problem

If 4/x<1/3 what is the possible range of values for x? in case 1: x > 0 4/x < 1/3 12>x It says on the MGMAT Guide: If x and y are positive then flip the inequality if 1/3 > 1/5 then 3 < 5 and assumming both sides are positive in case 1, i flipped the inequality What am I missing here?

by Strongt

Fri Dec 16, 2011 7:56 am
Forum: Problem Solving
Topic: Inequality Problem
Replies: 3
Views: 1369

If |10y - 4| > 7 and y < 1, which of the following could be y? A) -0.8 B) -0.1 C) 0.1 D) 0 E) 1 Could someone explain why the answer is A and not B What did you do to get B? Plugging in values works well here, as neelgandham demonstrates. If you want an algebraic way to solve it, you can do the fol...

by Strongt

Thu Dec 15, 2011 7:20 am
Forum: Problem Solving
Topic: Absolute Vlaue Question
Replies: 4
Views: 1010

Absolute Vlaue Question

If |10y - 4| > 7 and y < 1, which of the following could be y?

A) -0.8

B) -0.1

C) 0.1

D) 0

E) 1

Could someone explain why the answer is A and not B

by Strongt

Thu Dec 15, 2011 6:55 am
Forum: Problem Solving
Topic: Absolute Vlaue Question
Replies: 4
Views: 1010

is xy = -1? 1) x=y 2) y=1 Answer is A and I understand why, but looking at statement 2, I can come up with a value for x (1) x = y implies that xy cannot be equal to -1, because for their product to be -1, one of them should be positive and other should be negative, which cannot be the case as x = ...

by Strongt

Mon Nov 28, 2011 10:58 pm
Forum: Data Sufficiency
Topic: Equation Qs
Replies: 5
Views: 1146

How can you come up with the value of x using statement 2 ? Or am i missing something here ? is xy = -1 ? we cannot substitute y = 1 in xy = -1 and say x = -1. xy can be = 4 or 8 or -12. You can substitute only if it is given as ' if xy = -1 '. A.x = y => is xy = -1 ? No. SUFF. B.y = 1 => is xy = -...

by Strongt

Mon Nov 28, 2011 10:56 pm
Forum: Data Sufficiency
Topic: Equation Qs
Replies: 5
Views: 1146

Equation Qs

is xy = -1?

1) x=y
2) y=1

Answer is A

and I understand why, but looking at statement 2, I can come up with a value for x

by Strongt

Mon Nov 28, 2011 8:23 pm
Forum: Data Sufficiency
Topic: Equation Qs
Replies: 5
Views: 1146

Geometry Question

The line represented by equation y=x is the perpendicular bisector of line segment AB. If A has the coordinates (-3,3), what are the coordinates of B?

answer is [spoiler](3,-3)[/spoiler]

would someone please explain the concept behinde the answer

by Strongt

Wed Nov 23, 2011 2:34 am
Forum: Problem Solving
Topic: Geometry Question
Replies: 3
Views: 1334

DS Percent Question

By what percent did the price of a book increase? 1- The ratio of the book's original price to its new price is 4:5 2- The ratio of the chnage in the book's price to its new price is 1:5 Answer is d I got it right but I want to know if there is a systemitic way to answer these type of questions

by Strongt

Tue Nov 01, 2011 10:58 pm
Forum: Data Sufficiency
Topic: DS Percent Question
Replies: 2
Views: 2112

Consecutive Integers Question!

Is k^2 odd?

(1) k-1 is divisible by 2
(2) The sum of k consecutive integers is divisible by k

could someone tell me why the answer is D and not A

by Strongt

Mon Oct 31, 2011 7:38 pm
Forum: Data Sufficiency
Topic: Consecutive Integers Question!
Replies: 4
Views: 3408
by Strongt

Thu Oct 06, 2011 9:01 am
Forum: GMAT Strategy
Topic: MAnhattan GMAT Study Plan
Replies: 1
Views: 1473

MAnhattan GMAT Study Plan

I just got the 8 set Manhattan GMAT study guide and would like to know if there is a strategy to tackle to tackle those books? It's 8 books so I was thinking about studying a chapter or two from 2 different books everyday. How does that sound? appreciate your help I have around 4 months to study/ 3 ...

by Strongt

Wed Oct 05, 2011 4:30 am
Forum: GMAT Strategy
Topic: MAnhattan GMAT Study Plan
Replies: 1
Views: 1473

ana men Qatar :)))

a5barkum shabab? I'm still working on it.

Cyc, to get a 700 score, i think you should enroll in an online prep course

by Strongt

Fri Jun 03, 2011 4:10 am
Forum: GMAT Strategy
Topic: Help with study plan ( need around 700 )
Replies: 8
Views: 2083